git-treasure: Add script
git/config: Set treasure.prefix = ~/src/treasure
bash_completion/go: Import from go-1.2
git-treasure: Fix --prefix option

Fix getopt specifier to require an argument for --prefix.

Fix function get_prefix to return the prefix given on the cmdline, if one was given.
git-treasure: Implement 'ls' command
git-treasure: Refactor calls to git-config

Add new function git_config that wraps git-config. Use it to get config option
treasure.prefix.
git-treasure: Add option --relative to command 'ls'
vimrc: Find GOROOT with `go env GOROOT`
profile/go: Don't set kw_goroot

It's only user was an old vimrc.
profile/go: Check for go installation at ~/opt/go

If it exists, then set GOROOT and PATH.
profile/go: Prepend to GOPATH instead of resetting it