v0.1

What's new:

• views for actions (with some magic behind the scene done for you)
• intoduce Rails-like respond_to method
• formats for respond_to ( html and any for now)
• redirect_to method for redirecting available in controllers
• http errors implemented as Crystal exceptions
• controllers perfomance improved
• better mime-types support for static files serving(thanks to crystal-mime)
• numerous bug fixes and improves

Wiki will be updated soon