matching component documentation URLs with values in _messages file

Change-Id: Ibfdb1f9bf426fd62b67043e8610d46b72ac6d21f
adds glass panel for popup menus so that they auto close when clicking on blocks editor

Change-Id: I5998908f55b09db56f18ad7e78100e75976c4b3b
Merge branch 'master' into localserver
Merge branch 'localserver' of https://github.com/javmarina/appinventor-sources into localserver