Revert fork to match upstream ckan/ckanext-spatial repo

[twdbben]

@tino097 I made this issue just so that I can make you aware that we have reverted our fork of ckanext-spatial so that it exactly matches the upstream repo.

We had made some minimal changes such as adding tooltips to some of the buttons, so I'm not sure what was causing the problem, but I have made a note to revisit these changes after we stabilize everything else and we will leave this fork exactly matching upstream for now.

Please comment when you have seen this and I will close it.

Thanks!