First steps with @wasnotrice : rename ElementMethods to DSL, since that is what it is.
Refactoring the DSL specs with @wasnotrice.

We renamed ElementMethods to DSL, then pulled apart
spec/shoes/shared_elements/dsl.rb into separate files
per DSL method.

These shared examples are now also being run against
Flow, as well as against App and Stack.
Merge pull request #247 from shoes/refactor_dsl_spec

Refactor dsl spec from @arnebrasseur and @wasnotrice - awesome sauce!!!