moved 'wizard' to 'data item filters'
remove unwanted commit
formatting
changed 'aggregate by' to 'group by'
created default values for 'group by' based on first and second groupable attribute
removed 'placeholder' because that functioned as unwanted default value
hide dataset select if url contains ?dataset=SomeDataset
if permission is COUNT then hide 'data item selection' (future need: configure what items can be filtered on)
bugfix: change to filter updates aggregates table without reset of 'group by' settings
added .idea to gitignore
Merge pull request #1341 from mswertz/2014_03_22_aggregateviewer

moved 'wizard' to 'data item filters'; enhancements in aggregate viewer