Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of github.com:rmerizalde/opencommercesearch
add logic to limit the depth of the AbstractSearchServer getFacet method
add logic to limit the depth when generating the category graph in a
browse method
added some tests for the depth limit functionality when generating the category graph and abstract search server getFacet method
Merge pull request #71 from gsegura/master

Add functionality to limit the depth of the category graph