Merge minor registry changes from the 2.6 branch back to the trunk.
refs https://github.nceas.ucsb.edu/KNB/arctic-data/issues/107
show the Organization input field now that we will use keywords for the working group.
Make UI include the Organization (called "site" in the form params) instead of the registry code. https://projects.ecoinformatics.org/ecoinfo/issues/6162
include optional email.overrideURL property for the account management page to send an email link that will result in a styled response. https://projects.ecoinformatics.org/ecoinfo/issues/6066
do not include metacatui headers and footers.
show organization list in the registry
Stubs for 'metacatui' rendering. Initial target is to support Perl registry styling, but also general structured html views on metadata. https://projects.ecoinformatics.org/ecoinfo/issues/5951