Fix add tree links on profile and map header
Add default CartoCSS files

The default cartography for the tiler that matches the coloring of the
default site style.
Use settings.TEMPLATE_DEBUG instead of debug to avoid Django IP weirdness
Only scope to an instance and check field permissions for instance models
Support custom site logo

* Add ImageField "logo" to Instance model
* base.html logic to load it
* Add safety code to imageUploadPanel.js
* Create reusable MediaTest superclass for tests which use file storage
Merge pull request #397 from jwalgran/fix/add-tree-on-profile

Fix add tree links on profile and map header
Merge pull request #398 from jwalgran/topic/add-carto-css-files

Add default CartoCSS files
Post-feedback cleanup.
Merge pull request #427 from maurizi/topic/minorFixes

Minor fixes
Merge pull request #430 from RickMohr/update-site-logo

Support custom site logo
Add street view to plot detail if the instance base map is google maps
Merge pull request #422 from maurizi/topic/streetView

Add street view to plot detail if the instance base map is google maps
Use https instead of git protocol

This works behind more firewalls.
Always load bootstrap before typeahead.js, Fixes #424, #425
Merge pull request #432 from maurizi/master

Always load bootstrap before typeahead.js, Fixes #424, #425
Re-add in admin page access
Support for approving/rejecting existing audits

Currently we have pending audits, which represent changes that have not
yet been applied. Now we also have the concept of "reviewing" an audit
that has already been applied.

If the review is 'accepted' then a ref is attached to the audit with
"ReviewAccepted" and nothing else happens.

If the review is 'rejected' then a ref is attached to the audit with
"ReviewRejected" and the change is rolled back.
Provide link to raw images
Don't json-encode payload for GET requests
Add photo review page