faq typos and note about the incorrect spelling of impostor.
Changed version change alert to stand out a bit more
Changed test to verify predicates work with non-strings for predicates
other than deepEquals, in reseaching
https://github.com/bbyars/mountebank/issues/4
Fixed problem using numbers and booleans for deepEquals predicates:
https://github.com/bbyars/mountebank/issues/4