More doc info for `g:ycm_confirm_extra_conf`
Fix '.gitignore' for Windows systems
Merge pull request #491 from WscriChy/gitignore-fix

Fix '.gitignore' for Windows systems
Merge branch 'dev'
Add Tagbar to the filetype's blacklist
Merge pull request #499 from vheon/patch-1

Add Tagbar to the filetype's blacklist
Refactoring out TU storage into own class

This makes the code more readable, maintainable and robust since we're now
encapsulating the mutex to filename_to_translation_unit_.