GSS Conversion bug with several undefined constants.

The converter fails to convert everything in lower case when a 
property value contains several uppercase strings that don't 
match constants.

Bug: issue 8963
Change-Id: Ief059cb704bd312dd32508d1ada853874c9c7832
(cherry picked from commit 551d490fb98831848f2d2bc7a1e81ac59ef48ff5)
Add @MimeType and @DoNotEmbed support to <ui:data.

Change-Id: Ie10be09bf9248de10c28c700db170dc56887b461
Review-Link: https://gwt-review.googlesource.com/#/c/9515/
(cherry picked from commit 0e1066b77b605846d58bdda907431b4eac7abdbc)