Add test for HistoryHash _REGEX_HASH fix
Correct HistoryHash _REGEX_HASH and parseHash to allow for blank hash string properties.
Build HistoryHash
Update HistoryHash HISTORY.md
Merge branch 'patch-HistoryHash-blank-values' of git://github.com/blzaugg/yui3 into dev-master
YUI and Loader build for latest Gallery build
Merge branch 'dev-master' into dev-3.x