first installment of gettext support
complete gettext support
added github link to plugin details
added gettext for menu title + settings title
minimal code corrections for gettext
German translation
removed translation for GitHub name - cause: nonsense
Minor tweaks and fixes.

- Don't translate any URLs
- Fix some unbalanced tags
- Fix empty Javascript warning message
- Normalise whitespace
Some i18n fixes, updated POT file
gettext fixes + refreshed DE translation
extended readme.md