in version 0.1.1:

- change in spinBox settings, now the minimal value is 3, proposed by Gerhard Spieles
for drawing objects like triangle, pentagon, hexagon etc..., when using "Circle from center tool"

in version 0.1.2:

- rewrite of startup part of rotation tool

in version 0.1.3:

- QToolButton is replaced QToolBar, hopefully this would work on OSX

- for snapping of virtual center with "...FromCenterTool" CTRL key has to be pressed

- cleanup

- exchange of values between rubberband and createFeature function mediated with 
QgsGeometry

in version 0.1.4:

- fixed rubberband and invalid geometry issues with the 1.9.0 dev version
