deleted helper
checkbox plugin
add debug output
Merge branch 'augmenting119_categories_for_ontologies' of github.com:ontohub/ontohub into augmenting119_categories_for_ontologies
checkbox plugin
methods to import meta ontology as categories
Merge branch 'augmenting119_categories_for_ontologies' of github.com:ontohub/ontohub into augmenting119_categories_for_ontologies
sentence_test: extract names
test creation of categories
fixed tests
modified js-tree
modified tree view; read its input
catch zero categories selected; improved view
merge & delete obsolete test
set index, change validations, add tests
make sure to erase previous set of categories before setting up new one
Merge branch 'staging' into augmenting119_categories_for_ontologies
Merge branch 'augmenting119_categories_for_ontologies' into develop

Conflicts:
	Gemfile.lock
	app/assets/javascripts/jstree.js.coffee
	app/controllers/ontologies_controller.rb
	app/models/category.rb
	app/models/ontology/categories.rb
	app/views/ontologies/_category.html.haml
	app/views/ontologies/new.html.haml
	db/migrate/20130422184444_create_categories_table.rb
	test/unit/category_test.rb