Removed trim in ValueBoxBase, forcing parsers to handle trim()ing.

Added test for ValueBoxBase, specifically (instead of a test of TextBox as before.) The tests include a test for exceptions and a test to make sure strings with spaces are correctly passed through.

Review at http://gwt-code-reviews.appspot.com/738801

Review by: knorton@google.com

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@8489 8db76d5a-ed1c-0410-87a9-c151d255dfc7
3 files changed