Style create a map pages, management pages
Merge branch 'master' of github.com:mtedeschi/OTM2 into topic/management-styling

Conflicts:
	opentreemap/treemap/css/sass/partials/_admin.scss
	opentreemap/treemap/templates/base.html
Create a map styling, pricing and progress bar
Create instance form styling
Add disabled block over step 4 on create instance
Merge branch 'master' of https://github.com/azavea/OTM2 into topic/management-styling
Remove unused precompiled main.css
Issues with transaction management.

Skip these tests until we can fix them later.
Allow overriding feature function with tests
Set proper error codes on error pages
Block of instance error pages when there is no instance
Add in unit conversion utilities and tests, Fixes #459
Add translation
Merge pull request #588 from maurizi/topic/459/convertUnits

Add in unit conversion utilities and tests, Fixes #459
Lint
Fix typo that prevented instance creation
Merge pull request #590 from mtedeschi/topic/management-styling

Styling for Create Instance pages, minor styling
Looks like another species type... use keys() not keys
Merge pull request #591 from maurizi/fix/removeMainCss

Remove unused precompiled main.css