change path of scripts relative to rails root
add test for file iterator method
add implementation of file iterator
add commit_oid to files iterator block
add commit_oid to files iterator block implementation
add method to save all ontologies in the database
save ontologies of newest version when importing and synchronizing
Migrated from resque to sidekiq

Sidekiq has some great features and offers multithreading.
Calculate and save SHA1 of each ontology version.
Installation instructions updated
Merge branch 'git' of github.com:ontohub/ontohub into git
merge git into develop
Merge branch 'develop' of github.com:ontohub/ontohub into develop
Merge branch 'develop' into develop.ontohub.org