Merge branch 'xdg_base_dir_spec' of https://github.com/holomorph/fontforge.git
Merge remote-tracking branch 'upstream/master'
Small patch to de.po

Follow http://sourceforge.net/mailarchive/message.php?msg_id=31675268
"make FontForge.pot" like in htdocs/uitranslationnotes.html

Allow users to create new language po files based on info shown here.
Update de.po using "make FontForge.pot"

Most of this de.po updating is related to "[Fontforge-devel] UI language"
Go see http://sourceforge.net/mailarchive/message.php?msg_id=31675268

Kept the same copyright messages since none of this update is "language".
Merge pull request #1010 from JoesCat/master

Add "make fontforge.pot" and then update de.po