vimrc: set shiftround
vimrc: Use nnoremap for cscope mappings
vimrc: Abbreviate TODO only in insert mode
vimrc: Retab with two-space tabs
gvimrc: Retab with two-space tabs
Add more modelines to config files
Retab scripts with two-space tabs
bashrc: Remove trailing whitespace
bashrc: Retab with two-space tabs

Also clean up some formatting