adding explanations as placeholder in the form
ilike_operator removed

We do not use MySQL any more.
Return statements removed and some simplifications done.
"Cast" parsed URI to Boolean to avoid an explicit return of true.
Merge pull request #643 from ontohub/595-explanations_for_upload_an_ontology_file

in the Team Meeting discussed
Extra script to start sidekiq.
Replace shellscript shell by sidekiq process.
Merge pull request #653 from ontohub/external-sidekiq-start-script

Extra script to start sidekiq.
Merge pull request #647 from ontohub/refactoring_return-statements

Some simplifications
SimpleCov added

SimpleCov is a code coverage analysis tool that generates awesome reports after running our test suite.
introduce gemset-specific simplecov filters

This also includes a SharedHelper to share
some settings between test_helper and spec_helper.
More filters for SimpleCov added

config, spec und test directories filtered
Groups for SimpleCov added
Coveralls added
allow local coverage generation w/o coveralls

When coveralls is not used (rake task) we should
still generate local simplecov reports.
Only load Coveralls if its rake task is invoked
should fix #601
Merge pull request #668 from ontohub/simplecov

Integration of Coveralls.
Merge pull request #654 from ontohub/601-some_repositories_are_not_listed

Show correct repository count, fixes #601.
Merge branch 'staging' into 521-adding_feature_selectors_in_ontology_search