Adding the initial unit test

Adding a unit test class for the Configuration component
Updating the Configuration component

Adding extra logic for checking the database parameters
Updating the Configuration component unit test

Removing the try..catch in the setUp of the Configuration component,
since the exception should be fired into the test case
Updating the login logic

Adding a simple session checking check for users login into the system
Adding session storage to the Session component
Merge pull request #6 from rudisimo/session-updates

Session updates