pkg/*: Fix misspell issues

See,
$ find . -type f | xargs misspell -locale US | grep -vi -e vendor -e devenv -e Unknwon -e Destory | grep pkg
./pkg/services/sqlstore/org_test.go:190:15: "frome" is a misspelling of "from"
./pkg/tsdb/elasticsearch/response_parser.go:544:24: "Unkown" is a misspelling of "Unknown"
./pkg/tsdb/opentsdb/opentsdb.go:87:20: "marshalling" is a misspelling of "marshaling"
./pkg/components/dynmap/dynmap_test.go:2:7: "Licence" is a misspelling of "License"
./pkg/components/dynmap/dynmap.go:2:7: "Licence" is a misspelling of "License"

pkg/components/dynmap/dynmap.go

 // uses code from https://github.com/antonholmquist/jason/blob/master/jason.go
-// MIT Licence
+// MIT License
 
 package dynmap
 

pkg/components/dynmap/dynmap_test.go

 // uses code from https://github.com/antonholmquist/jason/blob/master/jason.go
-// MIT Licence
+// MIT License
 
 package dynmap
 

pkg/services/sqlstore/org_test.go

@@ -187,7 +187,7 @@ func TestAccountDataAccess(t *testing.T) {
 					err := DeleteOrg(&m.DeleteOrgCommand{Id: ac2.OrgId})
 					So(err, ShouldBeNil)
 
-					// remove frome ac2 from ac1 org
+					// remove ac2 user from ac1 org
 					remCmd := m.RemoveOrgUserCommand{OrgId: ac1.OrgId, UserId: ac2.Id, ShouldDeleteOrphanedUser: true}
 					err = RemoveOrgUser(&remCmd)
 					So(err, ShouldBeNil)

pkg/tsdb/elasticsearch/response_parser.go

@@ -541,7 +541,7 @@ func getErrorFromElasticResponse(response *es.SearchResponse) *tsdb.QueryResult
 	} else if reason != "" {
 		result.ErrorString = reason
 	} else {
-		result.ErrorString = "Unkown elasticsearch error response"
+		result.ErrorString = "Unknown elasticsearch error response"
 	}
 
 	return result

pkg/tsdb/opentsdb/opentsdb.go

@@ -84,7 +84,7 @@ func (e *OpenTsdbExecutor) createRequest(dsInfo *models.DataSource, data OpenTsd
 
 	postData, err := json.Marshal(data)
 	if err != nil {
-		plog.Info("Failed marshalling data", "error", err)
+		plog.Info("Failed marshaling data", "error", err)
 		return nil, fmt.Errorf("Failed to create request. error: %v", err)
 	}