Removed "final" commenting, added methods

Removed the "Final" comment around each function, as this is now a dev
project.

Also added a new method to gather an array of EVERY user in the
database. It returns an array inside itself for each user in the
database, containing their information.
gitignore
Removed .DS_Store properly.
Fixed up example file
Added really simple install script and sql file
Started upgrading to MySQLi