how was this thing working earlier?
simplification
fix the display of mouse coordinates
fix angle display
add fundations for mutiple worlds per exercise
delegate hashCode for consistency
Merge pull request #140 from polux/pull_request

Small fixes and simplifications
let's be explicit
allow universes to use winning conditions that are not based on world's equality
Merge pull request #141 from polux/configurations

Add the fundation for mutiple worlds per exercise
Restore compilation of java files in build.xml.

Scalac displays that if compiles java files, but ir only does it to
resolve dependencies. It doesn't output anything.
add scala lib to the light jar
win here, win there, win win everywhere
Merge pull request #143 from polux/win

win here, win there, win win everywhere
Move the lightbot universe near its lesson

It's not used elsewhere. The problem is that LightBot is registered as
a programming language, which is bad. I should have a txt interpreter,
or generate the java code of the entity for lightbot, I'm not sure.
Rewamp the feedback reporting dialog box
let's push the feedback to our repo, not Cedric's
loosen the type of ExerciseTemplated.setup in order to avoid upcasts
Merge pull request #148 from polux/loosen_types

loosen the type of ExerciseTemplated.setup in order to avoid upcasts
Unclutters the UI: changing the buggle color is useless