migrate build to Travis #258 (#259)

* add travis file
* update lint so it reports properly
* disable circleci
* separate test structure into Verify deps & Lint, Unit Tests, Race Tests, Integration Tests
* fix path issue now evident on ci build err
* fixed golangci version to latest stable
* Upgrade ci lint to go script and avoid cache issues #268
* fix lint issues #268
* bump go version for travis build to match go.mod version recently updated with Cosmos SDK upgrade
* add panic for err edge cases on os.Stat
* increase timeout to 10m since its failing on jenkins
* bump GOLANGCI_VERSION to 1.23.8 in order to try avoiding some weird errors on CI

.gitignore

@@ -17,4 +17,6 @@ build/
 
 # Goland
 .idea/
-start.sh
+start.sh
+
+bin/