Add some additional test cases
Ignore rbenv's .ruby-version file
Add timecop, vcr, and webmock development dependencies to gemspec
Add response fixtures to the repo
Use the VCR cassettes instead of hitting the API
Update the README with some development instructions
Merge branch 'master' of https://github.com/oisin/ierail

Conflicts:
	Gemfile.lock
	README.md
	ierail.gemspec
Add a test for previously untested StationData#late? method
Move the requires into the test helper
Update fixture data
Merge branch 'master' of https://github.com/oisin/ierail

Conflicts:
	Gemfile.lock
	ierail.gemspec
	test/unit/ierail.rb
	test/unit/station_data.rb
Update fixtures
Add missing fixture
Update the newer tests to use VCR
Take DST into account when it comes to timezones
Manual resolution of pr #20 - including VCR cassettes
to allow offline testing.