adding smarty i18n plugin from https://github.com/fusiondirectory/smarty3-i18n 2e776c1df7
added tsmarty2c.php command line utility and a very simple translation blok in navigation.tpl
added sh file to generate translation strings
further improved po creation process & added basic en_US and tr_TR translations
locales now working - had to fix invitation.php to get tr_TR working cause of a php-setlocale() bug
added config option locale && added tr_TR hack to index.php:94
added config option locale && added tr_TR hack to index.php:94
set en_US as default locale
Merge pull request #1169 from raistlinthewiz/i18n

i18n proof & base work