Vimrc: Dockerfile syntax, composition and git binds

Composition binds:
-changed normal mode capitalization
-added normal mode spell correction

Git:
-updated git submodule "update" binding
-added git submodule "reset" binding
Submodule: updated submodules

-Command-T
-Tagbar
-csv.vim
-powerline
-powerline-fonts
-vim-virtualenv
-vimoutliner
-vundle
Vimrc: vim-virtualenv, git

-moved vim-virtualenv stuff together
-added checkout for <cword>