fix a bug that when users check the top protocol as the first action, it did not retrieve the any data items
implemented the server-side searching
Merge branch 'master' of https://github.com/molgenis/molgenis
removed unused function and variables
rename the variables and methods
Merge branch 'master' of https://github.com/molgenis/molgenis
fix the bug of lazy-loading;when the protocol is partially selected (some of the subprotocols are selected, at this moment if the protocol is selected, the selection is not produced properly )
Merge branch 'master' of https://github.com/molgenis/molgenis
add comment for searchProtocol method
Merge pull request #12 from ChaoPang/master

Finished the server-side searching for catalgoueTree
Merge branch 'master' of https://github.com/molgenis/molgenis into feature/auth