Temporarily increase zoom level

Color overlays.
overlays: Color/Animation overlay test images

Includes a color overlay template for as_woodentower0 and an
animation overlay template for as_lumberjack_barrack0.

All of this (including directory layout and naming conventions) is
temporary and likely to be changed later.
overlays: Color overlays for building instances

Requires fife branch `overlays`.
helios deserves all the thanks for making this possible.

Looking for `color_idle` as overlay for the action `idle`.
overlays: Animation overlays for building instances

Requires fife branch `overlays`.
helios deserves all the thanks for making this possible.

Currently only supports one overlay.
Looking for `anim_idle` as overlay for the action `idle`.
Sort componentholder mapping items alphabetically
TODO WIP multi-inheritance shadowing __init and _init

2013-05-02T13:32:28  <ChrisOelmueller> nihathrael: around for some funny component question?
2013-05-02T13:34:43  <ChrisOelmueller> basically i'm doing `print self.instance._instance`in a new overlay component (initialize()) and get `None` - how long do i need to wait for the relevant code in building.py to initialize the fife instance?
2013-05-02T13:35:41  <ChrisOelmueller> i also renamed something and would like a review on that by the way, let's see
2013-05-02T13:37:31  <ChrisOelmueller> there are __init() methods in both BRH and BasicBuilding and it appears only one of them was called in `class ProductionBuilding(BuildingResourceHandler, BuildableSingle, BasicBuilding):`  -  http://bpaste.net/show/MRnjaQYCREN40gtEqAjl/
WIP inventoryoverlaycomponent