God configuration improved

Replace subshell by Sidekiq process and terminate god after deploy:update.
Merge branch 'staging'

Conflicts:
	config/deploy/god.rb
god recipe fixed
Merge branch 'staging'
Merge branch 'staging'
Merge branch 'staging'
Improved ontology formality levels
removed ontology type distributed ontology
Fixed syntax error regarding to formality levels in settings.yml.
Merge branch 'master' into staging