Updated generation files naming for formulas
Merge branch 'master' of github.com:arrgyle/chemistrykit into update-templates-with-formulas

* 'master' of github.com:arrgyle/chemistrykit:
  Refactored the test to use let, and wired up the page object to exercise it.
Required formula in generator
Updated the generated beaker with a formula to use the let incantation.