Merge pull request #14 from youtube/sougou-work

ignore 'tags' for vi users
vtctld: sort children in the ZK explorer.
Merge pull request #16 from youtube/sougou-work

rowcache: change to a simplified prefix scheme
Fixing lock release in reparenting on error.
Adding optional logging for debugging.
Merge pull request #15 from youtube/vtctld-sort-children

vtctld: sort children in the ZK explorer.
Merge pull request #17 from youtube/reparent-fix

Fixing lock release in reparenting on error.
Merge pull request #18 from youtube/sougou-work

rowcache: bug fix on closing of CachePool
Checking the tablet type is valid.
go-fmt-all
Integrating review feedback.

Also fixing test to be less timing dependent.
One liner help fix.
Merge pull request #19 from youtube/reparent-fix

Checking the tablet type is valid.
script for appspot code review
fix typo
keep createcl simple for now