Add type to mock data

Simple Item Page - Tests & Docs

This merge closes #46 

Replaced row class with custom mixin, as using row to offset gutter widths has side-effects in newer versions of bootstrap

# Conflicts:
#	package.json
#	src/app/app.component.html
#	src/app/app.component.ts
#	src/app/core/cache/request-cache.reducer.spec.ts
#	src/app/core/cache/request-cache.service.spec.ts
#	src/app/core/core.module.ts
#	src/app/shared/shared.module.ts

upgraded to ngx-translate