In capistrano config, increment Ruby version for rvm.
Capistrano RVM bundle wrapper task.
Revert "Capistrano RVM bundle wrapper task."

This reverts commit 82527fa7fd2e80b6edcf328378e9b3612d40bd89.
Merge branch 'staging'
Merge branch 'staging'
Change the icon of Ontohub to the one of OOR
after an owl ontology is imported the entity tree is generated
fixing error with pagination and entity tree
tests are green again
Merge branch 'staging'
Merge branch 'staging' into 549-updating-ontohub-icon
cosmetic commits
autosave for sentences disabled

should avoid ActiveRecord::StatementInvalid: PG::NotNullViolation
related to #340
Test in 2.1.0 but not in ruby-head anymore on travis.
Removed old ontohub icons.
Merge branch 'staging' into 249-display_symbols_as_dag

Conflicts:
	app/models/ontology/entities.rb
Merge pull request #556 from ontohub/549-updating-ontohub-icon

Updating ontohub icon, fixes #549.
Refactoring and fixing of two issues:

* First click on entities#index showed hierarchy _and_ details views.
* Hierarchy was not correctly built (maybe because of wrong error raising on
  detected circle).
Merge pull request #552 from ontohub/249-display_symbols_as_dag

Generate entity hierarchy for new OWL ontologies and fix bugs with hierarchy view. Related to #249.
Merge branch 'master' into staging