Deleted Theme files that were in application root and a lot of unnecessary tmp files that have been uploaded/created.

Also moved default themes files to a new location in an effort to allow for current and future modularization of themes.
Modified all files to use relative pathing so that OGS can be installed in any subfolder rather than the webserver root.

Modified all files to use a config file that sets what theme is used and what database connection settings are sued.

Modified OGS to have a modularized theme system that can be changed on the fly by modifying a "theme" variable that selects which theme uses.