Add badwolf theme

https://github.com/sjl/badwolf
Merge pull request #16 from unc0/patch-1

Add badwolf theme
refactor badwolf theme to use helper variables
check for variable existence
update readme about laststatus. resolves #20
refactor colorschemes to overwrite a base instead of replacing
update badwolf theme
update dark and light themes
don't override the statusline help
fix automatic bufferline detection due to load order (resolves #21)
remove bufferline echo integration, must be done on startup
condense if statement
implement paste indicator. resolves #18
check detection in statusline, add some more unicode symbols to docs
minor refactoring, rename method for consistency
fixes #11. comparing of arrays not working as expected.
Added Ctrl-P Support
Merge pull request #24 from rdallman/master

Added ctrlp support
add the ability for window local overrides
move ctrlp into new extensions area