Add DOAP file for GNOME
Correct language codes of PO files
Capitalize description in DOAP file

To follow the convention.
Fix up po CMakeLists so Geary builds

Piotr Drąg had renamed a po file in commit:c83eed7 but not changed that
line in the po/CMakeLists.txt file, causing the build to break.  This
makes Geary build again.
Geary 0.4.2
Bump to Geary 0.4.2+trunk
Updated Hebrew translation
Merge branch 'master' into bug/7217-reconnect