Write values to the same location they are written from: this fixes superclasses getting out of step with their child classes, when values are updated at runtime.
Handle explosions and score modificaiton in onDeath(), rather than the physics engine.
Merge branch 'master' of git://github.com/EightAndAHalfTails/minimal-danmaku
Merge branch 'master' of git://github.com/Barrucadu/minimal-danmaku
Move the object system to its own directory
Rename Class:create() to Class:__create__(), and add a Class:new() which creates and initialises
Merge branch 'master' of git://github.com/Barrucadu/minimal-danmaku
Use Object as a default superclass, so the class hierarchy is now a tree, rather than a forest
Added boss class
Merge branch 'master' of git://github.com/Barrucadu/minimal-danmaku
fixed boss class