Getting segment length from plist
Fixed time argument type is segment drawer.
A few minor changes.
Added Angle support to plist.
Added more tree types.
Improving LSystemNode size handling and animation option
Clearing to transparent when animating.
Added a coloured background to test clearing of render texture.
Always setting blend function when drawing segment in render texture.
Improved handling of LSystemNode positioning and canvas colour
LSystemNode now implement SegmentDrawer.
Leaves generated on segments.
Making default baseWidth and maxLeafSize relative to lsystem size
Making summer leaves darker and more opaque.
Reducing max leaf size relative to LSystem height.
Allow access to UIImage from LSystemNode.
Saving image on double-tap.
Fix for leaf position tending to be to one side of segment
Moved colour constants into header file
Triangle leaf type.
Varying leaf colours.
Added support for schemes and setup a Summer scheme for Accacia tree
Added acacia schemes for autumn and winter.
Allowing a DefaultScheme to be specified
Added a menu for selecting schemes
Improved config to allow inherited properties and global schemes.