Allow source samples to forgo having a war folder
Removed war folders from expenses and mobilewebapp samples
Removed redundant task in samples's source target

Review at http://gwt-code-reviews.appspot.com/1451807

Review by: rjrjr@google.com

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@10262 8db76d5a-ed1c-0410-87a9-c151d255dfc7
3 files changed