PURE-219: reviewed code of graphicsediting
Merge branches 'PURE-188' and 'PURE-219' of github.com:geomajas/geomajas-project-client-gwt2 into PURE-219
PURE-219: renamed directroy to impl and code project to -impl
added example project to distinguish between two ways to activate editing.
added documentation for controller way to activate editing
Merge branches 'PURE-188' and 'PURE-219' of github.com:geomajas/geomajas-project-client-gwt2 into PURE-219
Merge pull request #9 from geomajas/PURE-219

Pure 219