emacs:el-get: initial setup

For now, melpa and el-get co-exist!

Signed-off-by: Ratheesh S <ratheeshreddy@gmail.com>
emacs: Add keybindings for goto-last-change

Bind goto-last-change to 'C-x C-/'

Signed-off-by: Ratheesh S <ratheeshreddy@gmail.com>
emacs: Add keybinding for git-gutter+-show-hunk

Bind 'git-gutter+-show-hunk' to 'C-x v t'

Signed-off-by: Ratheesh S <ratheeshreddy@gmail.com>
emacs: configure git-gutter+
emacs: configure xlicense package

setup xlicense package installed from el-get

Signed-off-by: Ratheesh S <ratheeshreddy@gmail.com>