added bundle exec
Adding bundler support by 'bundleExec' option. Bundler provides posibility to keep gem packages isolated and define different packages versions per project.
remove console.log
Added test for bundleExec option
installing bundler
Merge branch 'feature-bundle-exec' of https://github.com/ahmednuaman/grunt-scss-lint
Merge branch 'Sergey-Semashko-bundler' of https://github.com/ahmednuaman/grunt-scss-lint
Merge pull request #19 from Sergey-Semashko/bundler

Adding Bundler support