colorcolumn has been added in vim 7.3

some of my machines still run vim 7.2
Merge branch 'master' of github.com:rvoicilas/vim-config
Merge branch 'master' of github.com:rvoicilas/vim-config
Merge branch 'master' of github.com:rvoicilas/vim-config
Merge branch 'master' of github.com:rvoicilas/vim-config
Get rid of unused solarized