056avatar: interaction improvements I (zoom using mouse wheel).

git-svn-id: svn://cgg.mff.cuni.cz/grcis/trunk@210 c021de9b-3f10-4dc4-9d02-502951e1e0de
056avatar: comfortable avatar implementation (all three mouse buttons are used, inertia, keyboard..).

git-svn-id: svn://cgg.mff.cuni.cz/grcis/trunk@211 c021de9b-3f10-4dc4-9d02-502951e1e0de
056avatar: global speed settings, model colors.

git-svn-id: svn://cgg.mff.cuni.cz/grcis/trunk@212 c021de9b-3f10-4dc4-9d02-502951e1e0de