- finally got jasmine unit testing to work (issue #58)
 * for now , tests can be run by serving the whole coffeescad tree (cake serveWatch with the included cakefile) and navigating to serveIp:serveport/test
 * fixed path issues with existing specs
 * cleaned up and fleshed out project & settings tests
 * added VERY basic tests for basic csg operations (booleans and transformations)
 * added tests for stl & bom exporter : bom exporter itself needs a few minor adjustements for "gracefull failure"
 * started adding tests for project library (hardly any code for now)

- in order to get the tests above to work:
 * temporarly remove the options to use "includes" from csg.processor, as it was "requiring" the main app instance (bad case of no seperation of concerns and spagheti code)
 * a bit of cleanup , and better error handling in stl exporter
 * a bit of cleanup  in project.coffee