Search performance optimisations #2

Start Docker Compose for end-to-end (e2e) Testing

Typo in dropdown-field-parser.ts fixed

Clean build folder pre-tests

master travis test fixes

UI language cookie

# Conflicts:
#	src/app/shared/form/builder/ds-dynamic-form-ui/ds-dynamic-form-control-container.component.html

Item relations edit delete

# Conflicts:
#	src/app/shared/form/builder/ds-dynamic-form-ui/ds-dynamic-form-control-container.component.html

Entities grid templates

Collection pages, recent submissions: Added "empty" message

Bitstream format registries

Fix the labels on edit collection and community pages

Pagination messaging:  Hiding "Now Showing"

Modeled on browse-by.component.html