Get rid of facility type from perunServicesInit

Addition to commit 9c44af0011fff9b4a764841f12deafb63b2f28be
chmod +x on all gen and send scripts

Gen and send scripts should be executable.

Engine needs this permissions to be able to run the script. If it
doesn't have this permission following error didn't show up in
propagation status, but it can be saw in engine error log.
Bugfix: path to ssh private key in generit_send

ssh command can't resolve '~' in parameter '-i', so we can use something
like 'ssh -i `echo ~`/.ssh/ida_rsa', therefore '~' is interpreted by
shell itself.