Removal of IE6 production of javascript artifacts from GWT compile process. Should shorten the build process and remove some hacks for IE6 in the GWT codebase. We recently added IE9 support.
Also removed class: DynamicCallbackFormImplIE6.java as it is no longer needed to support IE6.
commit: d90eca63ce7813189bba7ba128407f62bccff660 branch: feature/gwt-upgrade
Bulk closing of BZs that have no target version set, but which are ON_QA for more than a year and thus are in production for a long time.