fixes #1509 - Foreman should use the proxy to import puppet classes

refs #1324 remove debugging code

fixes #1324 - Separate permssions on hosts from permissions for objects within hosts.

This allows a user to be granted permission to edit the host (and so change the group or proxy) but not, for example, edit the parameters
This could probably be extended further if necessary.

fixes #1497 - unable to recover from dhcp failures

fixes #1173 - remove legacy query interface

fixes #1460 - add an option to upload provisioning templates

fixes #1491 - Fail to import new classes

fixes #1479 - Chosing an environment, does not update puppet class list

fixed issues with newer version of virt, reusing the newer gem

refs #963 - ensure that we reset the feature list each time