Fix images not copying

Refs: https://github.com/Swiip/generator-gulp-angular/pull/174
Fix e2e tests

Refs https://github.com/Swiip/generator-gulp-angular/pull/180
Add views and CLI tool (gulp views)
Fix unit test module ordering
Add gulp test-watch
Explicitly call test, fixes item:1051
Add test-coverage task, modularise Karma configs