benchmarks for internal use
update verb
first pass at refactor
clean up docs
adds stringify method
removes `extend` and `reconstruct` methods
refactored for speed. no regex used. custom delims are still allowed.
update tests
Merge branch 'refactor'
0.6.0

BREAKING CHANGES!

 - new `stringify` method
 - removes the `reconstruct`, `extend`, and `toJSON` methods. All were unecessary and can be accomplished using either the `matter` or `matter.stringify` methods