Caching git status for N seconds.
Cache is immediately busted if we've moved to a different repo.
Lowered the status cache time from 10 to 7 seconds.
Merge branch 'josh-master'
Merge branch 'master' of https://github.com/dahlbyk/posh-git
Merge branch 'master' of github.com:dahlbyk/posh-git
Merge git://github.com/dahlbyk/posh-git
Merge branch 'master' of github.com:dahlbyk/posh-git
Merged