Reorganize validation classes and minimize visibility in preperation for
removing the Experimental tag.
[JSR 303 TCK Result] 151 of 257 (58.75%) Pass with 32 Failures and 7 Errors.

Review at http://gwt-code-reviews.appspot.com/1565807

Review by: rjrjr@google.com

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@10702 8db76d5a-ed1c-0410-87a9-c151d255dfc7
66 files changed