Fixed urls of screenshot
Refactored breadcrumbs directive and pushed into a directives into a directory
Merge remote-tracking branch 'origin/master'

Conflicts:
	ngUSD-client/app/index.html
	ngUSD-client/app/scripts/app.js
	ngUSD-client/test/spec/controllers/navigation.js
Removed js-beautify in wrong folder.
Changed not existing target "test" in Gruntfile.js to "karma:unit" and "karma:e2e"
Added tests for breadcrumbs directive and the filter.
Merge remote-tracking branch 'origin/master'

Conflicts:
	ngUSD-client/app/scripts/app.js