Merge pull request #1 from wagnert/master

Add web socket example
Merge pull request #2 from wagnert/master

Refactoring to work with new persistence container version
Add Extending Exceptions for LoginServlet
Add Extending Exceptions for LoginServlet
Add Extending Exceptions for LoginServlet
Merge pull request #4 from wagnert/master

Use require instead of require once to support Connection: keep-alive
added example for basic authentication
Merge pull request #5 from Tominator87/master

added example for basic authentication
implementing digest auth example
Merge pull request #3 from larsroettig/master

Add Extending Exceptions for LoginServlet
Merge pull request #6 from dittertp/master

implementing digest auth example
Merge pull request #1 from techdivision/master

Add Extending Exceptions for LoginServlet