Refactor PathsInitializer for light environments.
move git logger into init file

Also fix the requirement of being in the directory
of the file, when loading init.rb.
Remove unnecessary OntohubConfig and refactor.
remove strange working_copy.pies config-entry.
fix key model spec by providing valid rsa key.
add missing working_copies path to config.
Fix key controller specs by providing a valid key.
Merge branch 'augmenting304_ssh_access_for_git' into develop