Merge branch '5-member-payments' into 6-member-referals
added GET /members/:membername/referrals endpoint.
added/changed test using nock.

- Recording was not fancy as VCR. It needs capturing request manually by adding `nock.recorder.rec();` code and add the captured code to the test.
- Please regard this commit as the start point in using nock. It needs improvement.
Merge commit '21227c1ed06964148e3e8ece17f3bdeef5c5e331' into member-referals-2
Merge branch '6-member-referals' into member-referals-2

Conflicts:
	test/setup.js
Merge branch 'member-referals-2'

Conflicts:
	actions/members.js
	initializers/members.js
	routes.js
	test/members.js
replaced hard coded port to env port