Merge branch 'fix-solarized-colornames-prefixed' of https://github.com/pearofducks/powerline into pearofducks-fix-solarized-colornames-prefixed

Conflicts:
	powerline/config_files/colorschemes/shell/solarized.json
	powerline/config_files/colorschemes/vim/solarized.json
Fix #449
minor improvements of consistancy and readability in solarized cs
added solarized-light colorscheme for vim and shell #568
Merge 'amuelli/feature/568-solarized-light'