Adds csv export controller for products
Adds test data with other language and improves export
Fixes exporter and implements importer
Removes english test data, fixes other issues, implements exporter for catalog
Adds catalog importer implementation and fixes some bugs
Adds attribute exporter and fixes some tests
Implements of container and content
Adds "releaseext" target for creating extension releases
Filter invalid XML characters in Texts
Update documentation of _mb_ord
Fix typo.
Add full UTF-8 support instead of UTF-16
Verify that $text is UTF-8 encoded
Rename function to make the description more exact.
Fix typo
Code styling
Implements method for calculating dates in the past that keeps care of weekends and public holidays
Merge pull request #323 from nsendetzky/master

Implements method for calculating dates in the past that keeps care of weekends and public holidays
Adds PHP 5.5 for travis-ci tests
Revert "Adds PHP 5.5 for travis-ci tests"

This reverts commit e5a11f950e58bd916a01668ad68c623fa84224f1.