add Travis CI build
added minimal Rakefile for running specs
added db related tasks to Rakefile
fixed project name in Rakefile
added specific ruby patch version to travis config
added Timecop (freeze time) to specs
freeze Time.now.utc with Timecop in specs, too
fix time in a spec
change the date_of_sample_collection date format
changed the expected date format, too
added UTC as default timezone in specs
remove specific ruby version from travis config
Merge pull request #33 from ke4/55551906_add_ci_build_for_our_applications

55551906 add ci build for our applications