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
Merge pull request #323 from nsendetzky/master

Implements method for calculating dates in the past that keeps care of weekends and public holidays
Merge pull request #324 from nsendetzky/master

Adds possibility to inject URLs from the application into the service providers
Merge pull request #322 from cookiekiller/xml_fixes

Filters invalid UTF-8 characters in texts
Merge https://github.com/Arcavias/arcavias-core
Improves implementation for filtering text but disabled it due to unexpected output for arabic characters