feat(accountNumber): Add account number to Account nav listing

Closes #474
test(rxPaginate): Use natural language for api.
docs(uisetup): Remove duplicated setup steps.
Merge pull request #475 from rackerlabs/i474_account_number_header

feat(accountNumber): Add account number to Account nav listing
Merge pull request #471 from rackerlabs/e2e-natuarlize-getter-setters-rx-paginate

E2e natuarlize getter setters rx paginate