memcache as child of vttablet, phase 1.
rowcache as child, phase 2
rowcache as child, a few fixes
Fix tests
Merge branch 'master' of github.com:youtube/vitess into new-rowcache-child
Fix deadlock bug: stop update stream after stopping invalidator
Merge pull request #12 from youtube/new-rowcache-child

rowcache: memcached as child of vttablet/vtocc
Merge pull request #13 from youtube/reparent-fix

Adding CreateShard, and related fixes.
ignore 'tags' for vi users
Merge pull request #14 from youtube/sougou-work

ignore 'tags' for vi users
rowcache: change to a simplified prefix scheme
Merge pull request #16 from youtube/sougou-work

rowcache: change to a simplified prefix scheme
Fixing lock release in reparenting on error.