update ruby version to 2.1.1 and gems to latest version
fix rspec's be_true/be_false deprecations
use 2.1.1 in travis
kill some test doubles
add a spec helper with some gobstones lang common objects
ensure all files have a proper line ending
create true and false values in one place for testing purposes
create color literal values in one place for testing purposes
create direction literal values in one place for testing purposes