Started work on films.

A lot of zoom related stuff.
"fractal fractal" -> "fractal"

Derp a herp slurp
Added a "zoom to start" option to ZoomableFractals.
Moved handleCommandLineOption into own interface.
Extracted Output into an own file and changed the way frame numbering
works.
Added the Camera interface.
Nerfed Output.

numbers iterator can now be set; also, default counting starts at 1.
Added filming to the Core.
Fixed the Camera - of course it needs a ZoomableFractal.
Added the Steadicam.
Fixed core bug.

(Stupid bug.)
Added film calculation to the Core.
Various bugfixes.
Bugfix in Steadicam.
Added awaitCalculation and listener to Camera.
Added shutdown to fractals.
Added shutdown to the Core.
Changed the fractXml format.

Conversion guide: <palette> is now not *inside* the <fractal>, but
besides it in a new top level tag <fractXML version="1">.
Added suggestImageType to fractals.
Core now utilizes suggestImageType