Fix deprecated jUnit imports and methods
BZ1077212 - Guided rule editor: setting fact field to a bound variable in RHS produces invalid DRL
 BZ-1044973 - Guided rule editor does not let the user to set objects as a parameters for method calls that have objects super type as a parameter
[BZ-1077344] avoid to log an exception when constraint jitting is not possible
Merge pull request #319 from psiroky/junit-fix-deprecation

Fix deprecated jUnit imports and methods