Fix typo: It's 0.20 not 0.19

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Silence some warnings

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Localize language packs if possible

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Add dictionaries to language packs where possible

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Do not include link to website in installer

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Replace tsvn by tgit

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Hide unsupported sections

Signed-off-by: Sven Strickroth <email@cs-ware.de>