Inception; nqueens

[skx]

This pull-request updates our lisp interpreter, inception, to successfully execute the nqueens.lisp example program.

This required three main changes:

• Bump the heap-size.
• Expose or to the runtime, newline, and reverse.
• Update our string reader to convert \n into a newline, etc.
• Update to handle set! better.
  • Now our forms, generally, return "(result env)" and we update the environment all the time using that.

There were other minor changes, but those were the main ones.