.vimrc: No need to set syntax and autoindent
.gitignore: Ignore vim backups
Add "my" alias

Useful for "gdb attach $(my Program)" when other devs might be running Program
on the same host.
Add "git br" to show all unmerged branches
Add git "delete-local-merged" alias
.vimrc: Add mappings to ack and git grep the cursor word
.vimrc: Add mappings for diff{put,get} followed by diffupdate
Add STL viewers for GDB
Ignore vim help tags