Fix IPv6 support for strange setups

A few boxes have a strange environment:
IPv6 enabled kernel and IPv6 enabled Python but only an ancient Twisted.
E.g. old OpenPLi on DM7025 still has Twisted 8.2.0, but Python and kernel are IPv6 enabled.
IPv6 support in Twisted started in 12.0.0 (Which is enough for what we need).
Fix moving target

Accessing twisted.version.major directly crashes in Twisted <13.0
prepare strings for translation
setup language localisation (plugin part)
add bonjour plugin support
Typo fixes
More typo fixes
Fix a bug introduced with translations.
Revert "Fix a bug introduced with translations."
This is not a bug, this is the correct typo, strings in skin are not translatable
Your "fix" commit breaks the default screen

This reverts commit 6cfb6ff7fb0acd21f6a03353d247f9907386c064.
prepare web gui translation with one example for "Movies"
this will be the better way for translation of the web gui
fix last commit
Add Greek Language Translation
Merge pull request #94 from athoik/greek

Add Greek Language Translation
Create cs.po

added cs.po
improve current info while playing movie
Merge branch 'master' of https://github.com/E2OpenPlugins/e2openplugin-OpenWebif.git
Full DMM remote has volume reversed, swap them
Merge pull request #96 from athoik/dmm-volume

Full DMM remote has volume reversed, swap them
Merge remote-tracking branch 'e2openplugins/master'