30291
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4533 UIThemeWatery and UIThemeWatery2 should be merged...
https://pharo.fogbugz.com/f/cases/4533
11207 clean up some dead code in FileContentsBrowser
https://pharo.fogbugz.com/f/cases/11207
Diff information:
http://smalltalkhub.com/mc/Pharo/Pharo30/main/Tools-MarcusDenker.1189.diff
http://smalltalkhub.com/mc/Pharo/Pharo30/main/Polymorph-Widgets-MarcusDenker.863.diff