Magic Cube

Standarize solver 'validity of position' methods.

Full support for multiple solvers per object.

Merge remote-tracking branch 'origin/master'

1. Conflicts:
2. src/main/java/org/distorted/objects/RubikObject.java
3. src/main/java/org/distorted/solvers/SolvingList.java
4. src/main/java/org/distorted/solverui/ScreenSolver.java

Beginning of support for more than one solver per object.

Beginning of support for more than one solver per object.

Restructuring for the solvers in the app.

Progeress towards automatically integrating the Algorithmic solvers into the list of solvers in the App.

improve the way Crazy Puzzles are done: JSON files

Phased Solver app: debugging

minor