add symlink_path to config
add basic rake task for cleaning and seeding
add raketask for importing some repositories
clean the code
Merge branch 'staging' into 759-clean_develop_ontohub_org
add redis cleanup functionality
Merge branch 'staging' into 759-clean_develop_ontohub_org
use code styleguide, simplify
Merge pull request #788 from ontohub/759-clean_develop_ontohub_org

759 clean develop ontohub org