make :AirlineTheme a getter/setter
upgrade replace to a mode of its own.
solarized2: fix obvious typos in gui mapping
fix typo badwolf color
Merge pull request #61 from bagrow/master

Typo in badwolf colorscheme
Merge pull request #60 from seletskiy/solarized2-gui-fix

solarized2: fix obvious typos in gui mapping
Fix wrong color code.
Merge pull request #62 from todashuta/master

Fix wrong color code.
add solarized palette into themes for reference
New theme: Powerlineish

Theme to mimic the default colorscheme of powerline.
Merge pull request #64 from jacobwalker0814/theme-powerlineish

New theme: Powerlineish
treat inactive as a new mode, allowing it to be themeable (#59).
make powerline integration instructions more prominent. resolves #63.