using vexor/vx-test-repo for tests

* test go build
* refactor ruby integration spec
* test ruby build
version bump
fixed caching custom directories
version bump
cleanup cached directories
version bump
add node_js script builder
version bump
add rust
version bump
Merge branch 'master' into bebanjo

* master:
  version bump
  add rust
  version bump
  add node_js script builder
  version bump
  cleanup cached directories
  version bump
  fixed caching custom directories
  version bump
  using vexor/vx-test-repo for tests

Conflicts:
	lib/vx/builder/script_builder/ruby.rb