New feature: Export printable questionnaires (#639)

• add _exportPrintableHtml to exports

• add _exportPrintableHtml to exports - all languages

• add _exportPrintableHtml to exports - include the printable css files

• add _exportPrintableHtml to exports -get all template assets instead of just css

• add _exportPrintableHtml to exports -PHPDoc

• add _exportPrintableHtml to exports - add proper action exportprintables

• add _exportPrintableHtml to exports -Add link to menu

• add _exportPrintableHtml to exports -clean up

• add _exportPrintableHtml to exports -clean up 2

• add _exportPrintableHtml to exports - add survey title to filenames

• add _exportPrintableHtml to exports - move in menu

• add _exportPrintableHtml to exports - fix constants redefined in printablesurvey if looped

• add _exportPrintableHtml to exports - remove survey title from zip contents : utf-8 special characters get nasty

• add _exportPrintableHtml to exports - fix imports

• add _exportPrintableHtml to exports Massive - add initial action

• add _exportPrintableHtml to exports Massive - add working code

• add _exportPrintableHtml to exports -remove checking if languages is empty

• Remove unused $oTemplate

• Fixed issue 12132: Survey List Status Filter 'Active and running' does not list expiring surveys

• reverse - wrong branch?

• reverse - wrong branch?

• reverse - wrong branch?

• Fixed issue 12132: Survey List Status Filter 'Active and running' does not list expiring surveys