Adding vim-colors-solarized

* Added submodule
* Linked to submodule from vim dir
Sublime to use Sublime Text 3 compatible theme

* Changed from Cobalt theme to Spacegray
Adding ZSH changes

* Merging previous zshrc config into dotfiles structure
Merge branch 'master' of github.com:paul-matthews/dotfiles
Merge branch 'master' of github.com:paul-matthews/dotfiles