[fix #51795617] barcode comes from cas/sequencescape
added development env settings to CAS config file
moved ruby-oci8 dependency to Gemfile
added .travis.yml file to help Travis CI build
added rvm an before_install to .travis.yml
Merge branch '51795617_barcode_generation_should_use_cas_and_sequencescape_db' of github.com:ke4/lims-support-app into ke4-51795617_barcode_generation_should_use_cas_and_sequencescape_db

Conflicts:
	spec/lims-support-app/barcode/barcode_spec.rb