Drop patch number from kind.

Author: rabbah

ansible/files/runtimes.json

@@ -286,7 +286,7 @@
         ],
         "ballerina": [
             {
-                "kind": "ballerina:0.990.2",
+                "kind": "ballerina:0.990",
                 "default": true,
                 "image": {
                     "prefix": "openwhisk",

core/controller/src/main/resources/apiv1swagger.json

@@ -1906,7 +1906,7 @@
                         "swift:4.1",
                         "swift:4.2",
                         "dotnet:2.2",
-                        "ballerina:0.990.2"
+                        "ballerina:0.990"
                     ],
                     "description": "the type of action"
                 },

docs/actions-ballerina.md

@@ -54,7 +54,7 @@ You can create an OpenWhisk action called `bello` from the function above as fol
 ballerina build hello.bal
 
 # use the .balx file to create the action
-wsk action create bello hello.balx --kind ballerina:0.990.2
+wsk action create bello hello.balx --kind ballerina:0.990
 ```
 
 The CLI does not yet automatically infer the type of the action from the source file extension.