Removing jruby 2.0-mode from travis, it is not supported: https://github.com/travis-ci/travis-ci/issues/2432
Make naming of test examples more consistent
Add helper to generate random string to make testing easier
Add helper to make testing of environment variables easier
Add file expand wherever needed
Added tests for checking ~ paths
Moved file tests in file describe block
Step to mock home directory
Added missing test for with_env
Add helper to generate random string to make testing easier

Conflicts:
	spec/aruba/api_spec.rb