WIP
WIP
WIP
Fix gwt-compiler tests
gwt-codeserver
Use buildnumber-maven-plugin to replace old svnInfo Ant task
Fix dependencies (htmlunit vs. xercesImpl, typo in protobuf)
Move super-sources to src/main/super
gwt-http
Rewrite SafeHtmlTemplatesGenerator without dependency on I18N.

Also simplifies AbstractGeneratorClassCreator a bit.

git fetch https://gwt.googlesource.com/gwt refs/changes/20/1320/3 && git cherry-pick FETCH_HEAD

Change-Id: Ie23cea62db7e73c163cfb8194452d8f010f084de
Split gwt-core into shared and client, merge gwt-lang in gwt-core-client
gwt-regexp-*, gwt-safehtml-server, gwt-i18n-{shared,server}
gwt-rpc
Add AsyncProxy and Cookies to gwt-core-client
gwt-safehtml-client & gwt-dom (with Window and Timer)
gwt-safecss
Fix gwt-core
Fix gwt-compiler
bindery/event, bindery/event-gwt
gwt-event-{shared,client}, gwt-event-logical-{shared,client}