use local images in test
setup package.json, add LICENCE
Merge branch 'master' into more-tests

Conflicts:
	package.json
refactor tests a bit
split test.js in individual files
some trackable-tests
Merge branch 'more-tests'

Conflicts:
	package.json
	test/index.html
	test/server.js
	test/static/index.html
	test/utils/client.js
	test/utils/static/index.html
rename offset to duration
add timestamp & timezone