Update vimrc

Updated vimrc for some colorscheme changes.
Update submodule references

Updated references to
                        command-t
                        syntastic
                        tagbar
                        tlib_vim
                        vim-bundler
                        vim-fugitive
                        vim-git
                        vim-haml
                        vim-rails
                        vim-ruby
                        vim-snipmate
                        vim-snippets