customer friendly filenames

adds the possibility to export all PDFs with filenames based on patterns. Possible Patterns are: {{order_id}}, {{customer_id}}, {{customer_name}}, {{customer_firstname}}, {{customer_lastname}} and strftime() date formats like "%Y"
customer friendly filenames in backend

added functionality for customer friendly filenames in backend with special type based placeholders like "invoice_id" and "shipment_id"...
Merge branch 'development' into issue110

* development: (28 commits)
  Don't use "andrucken"
  Typos, Spelling
  add locale fallback to suggestions to use all german translations for austria
  make composer installer only suggestion, no requirement
  add missing translations
  add more checks before adding address to footer
  add fields for imprint which are provided by firegento/firegento-magesetup
  add translation for de_DE
  make sure the old default is in place
  correct wording to make a difference
  fixes #163 add recommendation for https://github.com/magento-hackathon/Hackathon_LocaleFallback to use with de_AT locale
  only add changes to german locale to prepare for #163
  only add changes to german locale to prepare for #163
  Tiny fix in method comment
  removed stupid quotation mark inserted due to short of sleep
  fix number format of magento with black magic (regex)
  [+FEATURE] Customer address positioning
  add new string to translate files
  add new string to translate files
  add check whether font is uploaded and use if exists
  ...

Conflicts:
	src/app/code/community/FireGento/Pdf/Helper/Data.php
formatting
Merge pull request #176 from firegento/issue110

solved conflicts