Pre-Release Update

Update includes a bunch of fixes, including:
* update to .htaccess to block people from accessing config data
* update the admin theme to complete basic functionality
* update to Manifest theme to remove links page
* update to Manifest theme to show proper social links
* update to Admin theme to allow social links
* update to Admin theme to explain a few more things
* another update to getLastContentID to include the number of posts as
well as the hightest CreateDTS value
* other small bug fixes