vendor: update all dependencies

* Update all dependencies
  * Remove all `[[constraint]]` from Gopkg.toml
  * Add in the minimum number of `[[override]]` to build
  * Remove go get of github.com/inconshreveable/mousetrap as it is vendored
  * Update docs with new policy on constraints

vendor/github.com/aws/aws-sdk-go/models/apis/ssm/2014-11-06/api-2.json

@@ -25,7 +25,8 @@
         {"shape":"InvalidResourceType"},
         {"shape":"InvalidResourceId"},
         {"shape":"InternalServerError"},
-        {"shape":"TooManyTagsError"}
+        {"shape":"TooManyTagsError"},
+        {"shape":"TooManyUpdates"}
       ]
     },
     "CancelCommand":{
@@ -205,6 +206,22 @@
         {"shape":"AssociatedInstances"}
       ]
     },
+    "DeleteInventory":{
+      "name":"DeleteInventory",
+      "http":{
+        "method":"POST",
+        "requestUri":"/"
+      },
+      "input":{"shape":"DeleteInventoryRequest"},
+      "output":{"shape":"DeleteInventoryResult"},
+      "errors":[
+        {"shape":"InternalServerError"},
+        {"shape":"InvalidTypeNameException"},
+        {"shape":"InvalidOptionException"},
+        {"shape":"InvalidDeleteInventoryParametersException"},
+        {"shape":"InvalidInventoryRequestException"}
+      ]
+    },
     "DeleteMaintenanceWindow":{
       "name":"DeleteMaintenanceWindow",
       "http":{
@@ -523,6 +540,20 @@
         {"shape":"InvalidNextToken"}
       ]
     },
+    "DescribeInventoryDeletions":{
+      "name":"DescribeInventoryDeletions",
+      "http":{
+        "method":"POST",
+        "requestUri":"/"
+      },
+      "input":{"shape":"DescribeInventoryDeletionsRequest"},
+      "output":{"shape":"DescribeInventoryDeletionsResult"},
+      "errors":[
+        {"shape":"InternalServerError"},
+        {"shape":"InvalidDeletionIdException"},
+        {"shape":"InvalidNextToken"}
+      ]
+    },
     "DescribeMaintenanceWindowExecutionTaskInvocations":{
       "name":"DescribeMaintenanceWindowExecutionTaskInvocations",
       "http":{
@@ -1226,7 +1257,8 @@
       "errors":[
         {"shape":"InvalidResourceType"},
         {"shape":"InvalidResourceId"},
-        {"shape":"InternalServerError"}
+        {"shape":"InternalServerError"},
+        {"shape":"TooManyUpdates"}
       ]
     },
     "SendAutomationSignal":{
@@ -1257,6 +1289,7 @@
         {"shape":"InternalServerError"},
         {"shape":"InvalidInstanceId"},
         {"shape":"InvalidDocument"},
+        {"shape":"InvalidDocumentVersion"},
         {"shape":"InvalidOutputFolder"},
         {"shape":"InvalidParameters"},
         {"shape":"UnsupportedPlatformType"},
@@ -1922,6 +1955,7 @@
       "members":{
         "CommandId":{"shape":"CommandId"},
         "DocumentName":{"shape":"DocumentName"},
+        "DocumentVersion":{"shape":"DocumentVersion"},
         "Comment":{"shape":"Comment"},
         "ExpiresAfter":{"shape":"DateTime"},
         "Parameters":{"shape":"Parameters"},
@@ -1984,6 +2018,7 @@
         "InstanceName":{"shape":"InstanceTagName"},
         "Comment":{"shape":"Comment"},
         "DocumentName":{"shape":"DocumentName"},
+        "DocumentVersion":{"shape":"DocumentVersion"},
         "RequestedDateTime":{"shape":"DateTime"},
         "Status":{"shape":"CommandInvocationStatus"},
         "StatusDetails":{"shape":"StatusDetails"},
@@ -2481,6 +2516,27 @@
       "members":{
       }
     },
+    "DeleteInventoryRequest":{
+      "type":"structure",
+      "required":["TypeName"],
+      "members":{
+        "TypeName":{"shape":"InventoryItemTypeName"},
+        "SchemaDeleteOption":{"shape":"InventorySchemaDeleteOption"},
+        "DryRun":{"shape":"DryRun"},
+        "ClientToken":{
+          "shape":"ClientToken",
+          "idempotencyToken":true
+        }
+      }
+    },
+    "DeleteInventoryResult":{
+      "type":"structure",
+      "members":{
+        "DeletionId":{"shape":"InventoryDeletionId"},
+        "TypeName":{"shape":"InventoryItemTypeName"},
+        "DeletionSummary":{"shape":"InventoryDeletionSummary"}
+      }
+    },
     "DeleteMaintenanceWindowRequest":{
       "type":"structure",
       "required":["WindowId"],
@@ -2893,6 +2949,24 @@
         "NextToken":{"shape":"NextToken"}
       }
     },
+    "DescribeInventoryDeletionsRequest":{
+      "type":"structure",
+      "members":{
+        "DeletionId":{"shape":"InventoryDeletionId"},
+        "NextToken":{"shape":"NextToken"},
+        "MaxResults":{
+          "shape":"MaxResults",
+          "box":true
+        }
+      }
+    },
+    "DescribeInventoryDeletionsResult":{
+      "type":"structure",
+      "members":{
+        "InventoryDeletions":{"shape":"InventoryDeletionsList"},
+        "NextToken":{"shape":"NextToken"}
+      }
+    },
     "DescribeMaintenanceWindowExecutionTaskInvocationsRequest":{
       "type":"structure",
       "required":[
@@ -3331,6 +3405,7 @@
       },
       "exception":true
     },
+    "DryRun":{"type":"boolean"},
     "DuplicateDocumentContent":{
       "type":"structure",
       "members":{
@@ -3436,6 +3511,7 @@
         "InstanceId":{"shape":"InstanceId"},
         "Comment":{"shape":"Comment"},
         "DocumentName":{"shape":"DocumentName"},
+        "DocumentVersion":{"shape":"DocumentVersion"},
         "PluginName":{"shape":"CommandPluginName"},
         "ResponseCode":{"shape":"ResponseCode"},
         "ExecutionStartDateTime":{"shape":"StringDateTime"},
@@ -4163,6 +4239,20 @@
       },
       "exception":true
     },
+    "InvalidDeleteInventoryParametersException":{
+      "type":"structure",
+      "members":{
+        "Message":{"shape":"String"}
+      },
+      "exception":true
+    },
+    "InvalidDeletionIdException":{
+      "type":"structure",
+      "members":{
+        "Message":{"shape":"String"}
+      },
+      "exception":true
+    },
     "InvalidDocument":{
       "type":"structure",
       "members":{
@@ -4246,6 +4336,13 @@
       },
       "exception":true
     },
+    "InvalidInventoryRequestException":{
+      "type":"structure",
+      "members":{
+        "Message":{"shape":"String"}
+      },
+      "exception":true
+    },
     "InvalidItemContentException":{
       "type":"structure",
       "members":{
@@ -4275,6 +4372,13 @@
       },
       "exception":true
     },
+    "InvalidOptionException":{
+      "type":"structure",
+      "members":{
+        "Message":{"shape":"String"}
+      },
+      "exception":true
+    },
     "InvalidOutputFolder":{
       "type":"structure",
       "members":{
@@ -4386,6 +4490,53 @@
         "number"
       ]
     },
+    "InventoryDeletionId":{"type":"string"},
+    "InventoryDeletionLastStatusMessage":{"type":"string"},
+    "InventoryDeletionLastStatusUpdateTime":{"type":"timestamp"},
+    "InventoryDeletionStartTime":{"type":"timestamp"},
+    "InventoryDeletionStatus":{
+      "type":"string",
+      "enum":[
+        "InProgress",
+        "Complete"
+      ]
+    },
+    "InventoryDeletionStatusItem":{
+      "type":"structure",
+      "members":{
+        "DeletionId":{"shape":"InventoryDeletionId"},
+        "TypeName":{"shape":"InventoryItemTypeName"},
+        "DeletionStartTime":{"shape":"InventoryDeletionStartTime"},
+        "LastStatus":{"shape":"InventoryDeletionStatus"},
+        "LastStatusMessage":{"shape":"InventoryDeletionLastStatusMessage"},
+        "DeletionSummary":{"shape":"InventoryDeletionSummary"},
+        "LastStatusUpdateTime":{"shape":"InventoryDeletionLastStatusUpdateTime"}
+      }
+    },
+    "InventoryDeletionSummary":{
+      "type":"structure",
+      "members":{
+        "TotalCount":{"shape":"TotalCount"},
+        "RemainingCount":{"shape":"RemainingCount"},
+        "SummaryItems":{"shape":"InventoryDeletionSummaryItems"}
+      }
+    },
+    "InventoryDeletionSummaryItem":{
+      "type":"structure",
+      "members":{
+        "Version":{"shape":"InventoryItemSchemaVersion"},
+        "Count":{"shape":"ResourceCount"},
+        "RemainingCount":{"shape":"RemainingCount"}
+      }
+    },
+    "InventoryDeletionSummaryItems":{
+      "type":"list",
+      "member":{"shape":"InventoryDeletionSummaryItem"}
+    },
+    "InventoryDeletionsList":{
+      "type":"list",
+      "member":{"shape":"InventoryDeletionStatusItem"}
+    },
     "InventoryFilter":{
       "type":"structure",
       "required":[
@@ -4559,6 +4710,13 @@
       "key":{"shape":"InventoryResultItemKey"},
       "value":{"shape":"InventoryResultItem"}
     },
+    "InventorySchemaDeleteOption":{
+      "type":"string",
+      "enum":[
+        "DisableSchema",
+        "DeleteSchema"
+      ]
+    },
     "InventoryTypeDisplayName":{"type":"string"},
     "InvocationDoesNotExist":{
       "type":"structure",
@@ -5314,7 +5472,8 @@
         "AMAZON_LINUX",
         "UBUNTU",
         "REDHAT_ENTERPRISE_LINUX",
-        "SUSE"
+        "SUSE",
+        "CENTOS"
       ]
     },
     "OwnerInformation":{
@@ -5881,6 +6040,7 @@
       "members":{
       }
     },
+    "PutInventoryMessage":{"type":"string"},
     "PutInventoryRequest":{
       "type":"structure",
       "required":[
@@ -5895,6 +6055,7 @@
     "PutInventoryResult":{
       "type":"structure",
       "members":{
+        "Message":{"shape":"PutInventoryMessage"}
       }
     },
     "PutParameterRequest":{
@@ -6030,6 +6191,7 @@
       "max":1000,
       "min":1
     },
+    "RemainingCount":{"type":"integer"},
     "RemoveTagsFromResourceRequest":{
       "type":"structure",
       "required":[
@@ -6072,6 +6234,7 @@
       "type":"list",
       "member":{"shape":"ResourceComplianceSummaryItem"}
     },
+    "ResourceCount":{"type":"integer"},
     "ResourceDataSyncAWSKMSKeyARN":{
       "type":"string",
       "max":512,
@@ -6266,6 +6429,7 @@
         "InstanceIds":{"shape":"InstanceIdList"},
         "Targets":{"shape":"Targets"},
         "DocumentName":{"shape":"DocumentARN"},
+        "DocumentVersion":{"shape":"DocumentVersion"},
         "DocumentHash":{"shape":"DocumentHash"},
         "DocumentHashType":{"shape":"DocumentHashType"},
         "TimeoutSeconds":{
@@ -6565,6 +6729,7 @@
       },
       "exception":true
     },
+    "TotalCount":{"type":"integer"},
     "TotalSizeLimitExceededException":{
       "type":"structure",
       "members":{