Edits on the MySQL Setup
Edits on the MySQL Setup

- Reorganized MySQL variables
- Added new OliCore::$isSetupMySQL variable
- Added new OliCore::__get() function for managing read-only variables
- Set the OliCore::$db variable as read-only
- Minor edits in the OliCore::setupMySQL() function
  * Sets the OliCore::$isSetupMySQL variable to true if the PDO Object has successfully been created
- Added new OliCore::resetMySQL() function for reseting the MySQL variable to their default state
  * Sets OliCore:$db variable to null
  * Sets OliCore:$mysqlConfig variable to null
  * Sets OliCore:$isSetupMySQL variable to false
- Disabled the OliCore::getRawMySQL() function

OliFramework/Oli,OliFramework/Oli