Allow to auto-generate self-signed SSL certificates

The setup is rather simple. Instead of a full-blown CA, a CSR is used to
create the self-signed certificate.
Merge pull request #10 from crowbar/release/pebbles/master

pull changes from dell
since we using default api-paste we have to copy it into conf dir for pfs
Merge pull request #116 from saschpe/release/pebbles/master-ssl-gencerts

Allow to auto-generate self-signed SSL certificates
Merge pull request #117 from MirantisDellCrowbar/bug/api-paste/pebbles/master

copy default paste into cfg dir for PFS