Added strategies to find preferred site based on current HTTP request
Merge pull request #289 from mremi/default-site

Added strategies to find preferred site based on current HTTP request
Fixed path info of request due to previous refacto
Merge pull request #290 from mremi/default-site

Fixed path info of request due to previous refacto
Added unit tests
Merge pull request #291 from mremi/default-site

Added unit tests
Merge branch 'sonata-project/master'