Tweak columns displayed in main metadata view
We need to customise the columns displayed in the global view of the project. The columns in this view are a good start but not permanent from one session to another
This might be a good track to follow: https://groups.google.com/forum/#!searchin/xnat_discussion/select$20columns$20edit$20fields%7Csort:relevance/xnat_discussion/Y6H24Ydd2jU/V-p_Z6PwFAAJ