Merge pull request #55 from guestisp/master

Sync and Test the Guestisp code
CMS classes and Wikilinks class have been renamed
Invoice and Order pdf bug fixes
Order title fixed
Orders detail title fixed
Email html check before sending the message
Merge pull request #61 from guestisp/master

Pull request to sync the code
Welcome email message creation fixed
Administration language switcher updated
German translation added
Administration language switcher updated
German translation added
wrong language filename
Dutch language updated
Language switcher updated
Language flags and css updated
translation cronjob added
auto-update translation class
minor bugs solved
checkServices Updated
Currency Bug Fixed
Browser language detection fixed
Pdf Order Bug fixed
Minor bug solved
Fixed minor bugs within the product detail page
cronjob renew orders fixed
new firebug debug tool added
default translation
renew orders fixed
Fixed BOT crawler bug when a locale is not set in the bootstrap