[FIX] update sendPayment ripple-rest endpoint and options to pass
[FEATURE] add node-uuid
[TEST] build payment
[TEST] send pre-built payment
[TEST] response source_account, destination_account should match with
the original object
[CHORE] export secret to travis environment
[FIX] check if secret is available prior to test
[FIX] use environment secret, update wallet address
[FIX] has been rewritten in separate files
[TEST] use simon spy methods correctly.
[FIX] error argument typo
Merge branch 'send-payment' of github.com:stevenzeiler/ripple-rest-client into send-payment

Conflicts:
	test/client.js
Merge pull request #2 from stevenzeiler/send-payment

Send payment / Build payment