Remove OpenQA repository because openqa.org has been discontinued. If
this repository is left in pom file it will fill your local maven
repository with invalid jar files (actually html files with .jar names).
Add a repository for the tapestry 5.4-alpha-22 because I couldn't find
one for tapestry 5.4-alpha-3
Actually Tapestry 5.4-alpha-22 is in apache-staging repository so don't
need the extra tapestry-staging repository I created in previous commit
Merge pull request #17 from timcu/back-to-maven

Remove OpenQA repository because openqa.org has been discontinued.