Updates the IFRame and XS selection script templates to support
inlined selection scripts.  There are two changes involved:

1. There is a baseUrl meta property that can be used to override
the choice of base URL.

2. Meta tags can be made to apply to only module MODULENAME by putting
"MODULENAME::" at the beginning of the "name" attribute of the meta tag.

http://groups.google.com/group/google-web-toolkit-contributors/browse_thread/thread/f86a8e085457a7b5/1449181b1952c35a?lnk=raot

http://gwt-code-reviews.appspot.com/159810

Review by: jgw@google.com

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@7686 8db76d5a-ed1c-0410-87a9-c151d255dfc7