Support for Classic ASP language

[michelepisani]

Code syntax highlighting for Classic ASP

[ccampbell]

Hi there,

I am sorry for not working on this project in so long. I am back to it now, and have just released version 2.0. I'd be happy to merge this, but first could you do a few things:

• Update this to be compatible with Rainbow 2.0

  This will require you to update your branch from upstream and then move the file to src/language/asp.js. Then you will have to add 'generic' as the second argument to the Rainbow.extend call (previously it was assumed that languages would inherit from generic).

• Add some unit tests for ASP in the test/language directory. Instructions for running tests are available in the README and you can look at other files for examples.