node_manager_fkie: added a republish functionality

This function is accessible in extended info widget.
node_manager_fkie: reduced remote parameter requests
node_manager_fkie: 'autoupdate' parameter added

The autoupdate parameter disables the automatic requests. It is usefull
for low bandwidth networks.
node_manager_fkie: some icons changed
node_manager_fkie: icons
node_manager_fkie: version updated
node_manager_fkie: fixed node selection in description dock
node_manager_fkie: removed some python mistakes
multimaster_fkie: removed some python mistakes
node_manager_fkie: fixed sync button handling
multimaster_fkie: added queue_size argumet to the publishers