Fix problems with CORS. closes #124 closes #140
update gems
added changelog, closes #139
Added link to release
Merge branch 'develop' into feature-fix-cors
updated changelog
added route to catch invalid CORS preflight requests and added tests
remove other rubygem urls
Merge branch 'feature-fix-cors' into develop
Merge branch 'develop' into feature-rails-4.2.0

Conflicts:
	Gemfile
	Gemfile.lock
updated gems; added changes to changelog
finished updating to strong parameters
added more ruby/rails code quality gems
fix api doc generation; improve setup script