new dependencies for VRVis
Update packages.sh

correct syntax for pip
Merge remote-tracking branch 'remotes/origin/master-3d-browse' into VRVis-experimental

Conflicts:
	vagrant/scripts/packages.sh
Merge branch 'VRVis-experimental' of github.com:v-manip/ngeo-b into VRVis-experimental
Merge remote-tracking branch 'origin/VRVis-experimental' into merged_master
Removed glTF submodule, removed installation of pip and added necessary libraries as package installs
Added necessary packages for cache factory, reset default ports for vagrant mashine, removed data in mapcache.xml which is now loaded from somwhere