Install dependent eggs scripts for slaprunner
Before 0ce9ba5d scripts from slapos.core were generated in slaprunner software and it's no longer the case.
This causes the problem discussed in !235 (comment 51430) and probably more, because slaproxy does not start in the instance:
$ ~/bin/supervisorctl
listener-slapgrid RUNNING pid 2494, uptime 0:44:28
slapgrid-cp STOPPED Not started
slapgrid-sr STOPPED Not started
slapproxy FATAL can't find command '/opt/slapgrid/49bfd51226d7b8442eb6ec5805982264/bin/slapos'
supervisor>