fix api calls
handle null values
unit test dataset deleter
fix entity explorer, support mref values
Merge pull request #679 from dennishendriksen/master

Fix entity explorer, support mref values
Merge pull request #680 from bartcharbon/master

Unit Test for the dataset delete function
Initialize data explorer with data set specified in URL
remove entity classes with no instances, add custom css
Merge pull request #681 from dennishendriksen/master

Initialize data explorer with data set specified in URL
style entity explorer
group search results per protocol, layout search results
add custom stylesheet, bug fix: show name instead of identifier, move entity table to well, add search results header
add key columns for xrefs/mrefs
Merge pull request #682 from dennishendriksen/master

Group entity explorer search results by protocol
update spring 3.2.2 --> 3.2.3
replace cobertura with jacoco
Merge pull request #683 from dennishendriksen/master

Update spring 3.2.2 --> 3.2.3 + replace cobertura with jacoco
revert jacoco changes
Merge pull request #684 from dennishendriksen/master

Revert jacoco changes
Bugfix: download content incorrect after search in the tree
(protocolviewer)