Return HTML

[peterhurford]

• Can render an HTML page as a route.
• Makes a helper function to return HTML from a route.
• Decode URL parameters, so it can accept input from a form.
• Clean up the microserver_response.

[peterhurford]

TODO: Write tests

[kirillseva]

I still think that adding ability to serve a folder is invaluable, for injected js and css files, for example

[peterhurford]

@kirillseva Yep; I definitely want to do that because otherwise it is awkward :+1:

[robertzk]

May you add a few tests? Looking fantastic otherwise. Thank you!