Reorganized kennel app and other improvements

* Moved kennel-specific urls from h3.urls to kennel.urls
* Moved kennel templates to templates/kennel
* Added context processor to add Kennel context extras
* Added Manager model and view
* Added flatpages support for "about" and "haring" pages
* Added style for management and flatpage templates
* Added trails rss feed
* Upgraded to django 1.6