Preconfigure project sites with common defaults

* Use latest posts instead of page on front.
* Restrict to logged in users by default.
* Use the WSU Project (P2) theme rather than the Spine.
* Force HTTPS
* Configure default P2 related widgets in the sidebar.
* Flush rewrite rules.
Merge pull request #8 from washingtonstateuniversity/project-preconfig

[PR] Preconfigure project sites with common defaults