modified Line class to rappresent Line using implicit form
Added circle objects with simple implementation
Restoded gitmodule setup and DUnit update to version 1.0.9 (this
requires dmd update, now i'm using 2.065)
Add some comment
minor corrections
Added minimal svg representation capabilities
added first components to build SVG view on Geometric Elements
Definition of an interface to let clients to listen to modelled shape
objects changes.
Implemented a method to find shape common vertices (i.e. close enough to
be considered the same point).
optimized search for common vertices between shapes. speed up about 2x
on application of the method on very big polylines.
Bounds definition and Generic and fast Collision Detector definition.
Merge pull request #1 from gpuoti/LineV2

Line v2