-  Database bugfix
- created a RuntimeException wrapper for SQLException (which means a database failure).

a syntax error was causing a NullPointerException through a suppressed Exception in model.Order, and since the error suppression was used in other similar context the RuntimeException wrapper has  been used in all those cases. (Wherever a model method refers to a Database instance without throws any kind of exception)
Created the BUGFIX file in order to trace all known bugs and major changes to resolve them