display add another x buttons consistently

In view mode if there is an existing link, contact etc then make sure an
add another button is displayed that takes you into edit mode. Also
make language on the Add another buttons in edit more consistent with
the buttons in view mode.

Fixes #618
Remove extraneous labels on edit forms

There were extra labels for several of the tabs which were creating
visual clutter
keep selected tab when switching to edit mode on org page

Detect if we are on the organization page or the persons page so we can
do the correct selector to work out which is the active tab when
switching to edit mode
retain active tab when saving changes to org/person

Add the url hash to the form action so that when the saved page is
loaded it displays the tab selected when save was pressed so it's easier
to see that changes have been saved
Merge branch 'small-ui-fixes'