Adds unit tests for Chunkload class

Additionaly, since these written after the fact, it changes than reverts some parts
of the Chunkload.rb to test the tests itself
Merge branch 'master' into tests

Conflicts:
	Gemfile
	Gemfile.lock
	app.rb
Merge pull request #2 from markokacanski/tests

Adds unit tests for Chunkload class