Added a rerun button to the analysis view page that allows the user to quickly rerun an analysis
Merge branch 'master' of https://github.com/NERC-CEH/ecomaps

Conflicts:
	ecomaps/controllers/analysis.py
Test
Test
The point dataset value will be pre-populated when re-running an analysis.
Merge branch 'master' of https://github.com/NERC-CEH/ecomaps

Conflicts:
	ecomaps/services/analysis.py
Re-run page now pre-selects the datasets that were used to do the original analysis.
Merge branch 'master' of https://github.com/NERC-CEH/ecomaps

Conflicts:
	ecomaps/templates/analysis_view.html