Airline theme mapping (issue #12)
Fixing incremental search highlighting (issue #2)
Fixing SignColumn-related highlights, Syntastic and GitGutter plugins compatibility (issue #15)
Varying selection highlight with option (issue #15)
Tmux compatibility (issue #4)
Updating documentation
Fix GNU screen detection for *-bce

Also use POSIX shell syntax: lighter and the script might be sourced.

Ref: https://github.com/morhetz/gruvbox/issues/4
Merge pull request #16 from blueyed/master

Fix GNU screen detection for *-bce
Updating documentation
Cleanup and small fixes
Support for Signify, ShowMarks and vim-signature; docs updating
Fixing README
Introduced contrast option
Delete .gruvbox.vim.swo
Fixing dash compatibility (printf instead of echo -ne)
Additional functions
Merge remote-tracking branch 'upstream/master'
Added a new dark5 color :D