GitLab

~ Changed preference files to use the correct null check in Eclipse.
+ Removed code from the neverfear namespace as it was integrated rather than use a library. This required the removal of some tests. These should be reintegrated when the project was moved to maven and the library containing that namespace can be integrated correctly.
~ Changed some naming in the properties file.
+ Corrected some errors while doing code review.
+ Refactored some of the adapter code related to drops, lift, and updates to centralized code and reduce redundancy.
~ Preparing for a review of the drawing mechanism. Hence, changed some names in the Corona class and it's Image child.

Correct field name in BluetoothServer

Clean properties file and add documentation about property for the
adapter