Add admin template config options and a page_class helper for the sitemap
Add example config for templates to slices initializer
Add test for custom templates
Move page_classes method to site maps helper
Reset custom template config after tests
Merge pull request #42 from withassociates/templates-config

Admin template config options
Allow token field to have more than one row of tokens
Add urlField helper
Add radio field helper
Merge pull request #44 from withassociates/radio-field

Add radio field helper
Merge pull request #43 from withassociates/url-field

Add urlField helper
Make file upload work in old Safari and Internet Explorer
Merge pull request #47 from withassociates/fix-file-upload

Make file upload work in old Safari and Internet Explorer
Update regression to cover slices with multiple assets
Merge pull request #48 from withassociates/asset_deletion_regression

Update regression to cover slices with multiple assets
WIP attachment composer grid mode
WIP Admin UI
Make attachment composer grid-aware
Improve attachment grid behaviour
Fix asset thumb in asset editor