-added gruntfile , updated npm dependencies
- minor cleanups in various methods:
 * replaced object.meta reflection data with object.__meta
- started cleaning up coffeescript handling elements:
 * cleaned up compile method in foo-editor.html
 * started adding correct ast node detection methods in ast-manipulator
- basic tracking of coffeescript classes in generated works !
 * _isNodeAClassDeclaration_fromCoffee cleaned up and enables correct detection of coffeescript class declaration
 * _addNodeToClasses_fromCoffee added to be able to add the classes detected by the function to the classes list
 * also added very basic example at : test-scripts/bi-directional-coffeescript.coffee