Adds page title to model create page
Adds model name to AdminModel2Mixin template context.

All views subclassing AdminModel2Mixin will need the model
name in their template context, so moving it to the base
class so child views don't all have to override
get_context_data.
Merge pull request #117 from chrislawlor/feature/model-create-page-title

Adds page title to model create page
Merge pull request #115 from chrislawlor/feature/template-context-refactor

Adds model name to AdminModel2Mixin template context.
Adding @chrislawlor to the list of authors.
Add 'title' and 'page_title' template blocks.

Makes template page title styling consistent across all templates.
Fix delete text to match original admin.
Merge remote-tracking branch 'origin/develop' into rename-templatetag-module