(refactor) update e2e test templates

Page objects no longer export a new instance. Tests now create a new
instance of the page object.
(feat) update generated README

Generated README now lists installation instructions and available
Gulp tasks.
(fix) hyphenate templateUrl suggestion for route

Route generator now suggests a hyphenated templateUrl.
(chore) bump version to 0.4.8
Merge branch 'develop' into hapi