Let cake locate nginx files and connect to database

In the transition to bash-based setup files we forgot
to address
1) nginx was no longer located at /usr/local/......
2) a $ was left off of the database host replacement, so cake
was literally trying to connect to host {DBHOST}
3) lots of unnecessary quotation marks
Remove old Vendor source code directory
Download Cake 2.4.5 using Composer

NOTE: This is an upgrade from 2.3.0

Also removed bash_profile
Remove cake source code
Upgrade CakePHP to latest release - 2.5.7
Merge pull request #1281 from hamiltont/fix-cakephp

PHP: Many cakephp fixes