4.2.0

This minor release brings the following changes:

• added support for Romanian (thanks to irragal)
• hiding and unhiding of elements is now done by adding classes
• patterns stored in DOMStorage are now versioned (fixed issue169)
• Hyphenator.js now uses a modalDialog to ask for languages if o language is defined (issue171)
• there are two new functions that can be defined: onbeforewordhyphenation and onafterwordhyphenation
  And some bugfixes:
• fixed issue when accessing external style sheets (fixed issue164)
• togglebox works when elements are hyphenated by CSS (fixed issue168)
• hyphenation now works for elements with a supported language on pages that have a unsupported main language (fixed issue177)
• elements now hide during hyphenation when using a selector function (fixed issue172)
• some general refactoring and code changes