add first tests for the new version of ArgueJS:
- test of old ArgueJS (version 1) moved from ./test/ to ./spec/ArgueJS1/
- add new directory ./spec/ArgueJS1/ for tests of new ArgueJS (version 2)
- change karma.conf.js so that all tests of ArgueJS version 1 and version 2 run
- karma does only test in Chrome; I didn't get tests to run in Firefox or PhantomJS under Windows (always crashed and at first i have to figure out why that happens)
- tests for ArgueJS2: complete test of internal utility functions for working with types