talkatu/talkatu

Add a new TalkatuInput which subclasses TalkatuView and move the GSpell setup to it. Fixes TALKATU-60
[main]
host = https://www.transifex.com
[talkatu.talkatu-pot]
file_filter = po/<lang>.po
minimum_perc = 0
source_file = po/talkatu.pot
source_lang = en
type = PO