====== Useful VI Tricks ======

Put this in your .vimrc:

  map <F5> :s.^//.. <CR> :noh <CR>
  map <F6> :s.^.//. <CR> :noh <CR>

Now you use a visual line select (''shift-V'') to select what you want to comment,
smack ''F5'' and it's done. ''F6'' uncomments.

As a bonus, use these to change indents. Change indent to your preference for
indenting. I use 4 spaces. Use ''\t'' if you want a tab. Combined with ''shift-V'', you
can move whole blocks left and right easily.

  map <F7> :s/^indent// <CR> :noh <CR> gv
  map <F8> :s/^/indent/ <CR> :noh <CR> gv