Using Gruntfile.coffee instead of Gruntfile.js
generalize ajax to all Observables
release 0.2.5
handle missing initial value correctly in Model
release 0.2.6
ignore most files in bower
release 0.2.7
ignore even more
release 0.2.8
Refactor Gruntfile to dev vs. dist builds

This sets the stage for better automated testing and consistency across
browser vs. CLI tests.

More to come soon.
Extract configuration to options files
Load browser-dependencies from bower
Implement es6 modules with 'globals' configuration
Configure ES6 modules for UMD
Update examples and point them to dist version
Autoload npm grunt tasks