Initial semi-working implementation of Julia set fractal.

Pre-refactor commit.
Merge branch 'master' into julia
Further refactoring
Initial JuliaSet reactions to muzac
Merge branch 'master' into julia
Further refactoring and music listening to JuliaSet
Merge branch 'master' into julia
Add Scene lifecycle events (activated and deactivated).
Merge pull request #22 from vijoc/julia

Julia