Fixes #5423 - capsule-certs-generate and capsule-installer scripts
Refs #5423 - unify the config files naming
Refs #5423 - inform about where capsule-installer is coming from
Refs #5423 - make the example working directly
Refs #5423 - update package description
Remove rvm from Puppetfile
Update puppet modules
Merge pull request #51 from iNecas/capsule-installer

Fixes #5423 - capsule-certs-generate and capsule-installer scripts