Added help text on the EditSitePage and AddSitePage for the subnetwork drop downs. Changed "Dataverse Domain" to "Subnetwork" on the AddSitePage. Changed order of the fields on both pages, to better reflect the order of importance/relevance when creating a dataverse.  [ref 2985]
Merge branch 'develop' of github.com:IQSS/dvn.git into develop