Update German translation to new Gettext domain
Fix i18n subsystem not finding the translation files.
Merge branch 'release-2.0.0' of git://github.com/xet7/TSC into release-2.0.0
Indicate post-beta5 version
Change Gettext domain to Secretchronicles. /cc @xet7

This prevents filenames with a double period like
"The Secret Chronicles of Dr. M..mo" as it was previously.
Add eyeless clouds by @DarkAceZ. Cf. ticket #236.