removed all .keep files, added spec to pig_latin

Conflicts:
	pig_latin/spec/start_spec.rb
added method and tests are passing

Conflicts:
	pig_latin/spec/start_spec.rb
added 'cherry' and 'apple' tests, both passing

Conflicts:
	pig_latin/spec/start_spec.rb
made the translator work with actual pig latin grammar

Conflicts:
	pig_latin/spec/start_spec.rb