first implementation of the tree widget
edited gitignore file
added node_modules directory to gitignore
removed app/bower_components from versioning
removed gruntfile from jshint check
making script code jslint compliant
added angular commons
added karma-jasmine and karma-chrome-launcher as npm dependency
added jquery-ui as bower dependency which is needed for dynatree
removed test cases generated by angular web app generator
added script tag to include dynatree dependency since it is not injected by bower automatically
adding screenshot of the demo application to the readme
changed text of the title in the titlebar of the demo application