Merge pull request #495 from mazerte/fix-queue-bug

Fix queue creation on enforceUpdate
Jshint: don't process fixtures files
ref to yeoman/generator#501
Add support for variable names in template destination filename
Merge pull request #503 from mazerte/jshint-and-fixtures

Jshint: don't process fixtures files
Merge pull request #502 from pborrazas/underscore-filepath-template-squashed

Add support for variable names in template destination filename - squashed version
Fix bug in helpers.mockPrompt()

Inquirer API allow a single prompt item to be passed as parameter.
`mockPrompt` must also work with this signature.
Implement the RunContext test helper class