Introduction of BeanShellInterface class and sample user script. Minor change to World.nextPieceOnGrid() to drop the current piece if it wasn't dropped already.
Merge pull request #1 from adscib/beanshellinterface

Introduction of BeanShellInterface class and sample user script. Minor c...
Adding files BeanShellInterface.java and sample.bsh accidentally ommitted during previous commit.
Merge pull request #2 from adscib/beanshellinterface

Adding files BeanShellInterface.java and sample.bsh
bugfix in moveLeft()
Merge https://github.com/munraj/Ruletris
Merge pull request #3 from munraj/master

Bugfix in moveLeft() in World.java
Disabling the useless threads, getting rid of synchronized methods.
A small efficiency improvement
TEMPORARY COMMIT, DO NOT USE!
Investigating sluginess (note rotation does not work)
Rotation bug fixed
Rotation bug fully fixed, slightly faster?