Changes: RNAi form Tabs and others

In order to unclutter the RNAi page, I have installed a new module, that allows to split up large forms into several tabs. Now, there will appear a list of tabs: General, Sample, etc. replacing the fieldgroups. Please have a look and tell me if that is better or worse smiley

Also, the RNAi gallery does no longer display empty items for experiments with missing gallery images.

Also, the RNAi View (https://lb-test.bccs.uib.no/browse_rnai) will now remember values entered into the Experiment BatchID filter field and all other fields as well.