Redesign of CaptionPanel, lots of additional CaptionPanel unit tests, and a few related changes in SimplePanel (updated to use new Element class) and Node (javadoc tweak).

Patch by: bruce, jlabanca
Review by: jlabanca (pair programming)
Issue: 2307

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@2468 8db76d5a-ed1c-0410-87a9-c151d255dfc7
8 files changed