[FIX] Point docs link to the right place
Merge pull request #476 from vhpoet/patch-2

[FIX] Point docs link to the right place
[FEATURE] use account monitor

Refactor processes/incoming.js and IncomingPayment Class to use
ripple-account-monitor to listen to incoming payments (GA-599). Also
addresses GA-616.

[FEATURE] Get/Set/Fetch Last payment hash

[TASK] update cli to use updated API

[TEST] Incoming payment class

[TEST] get/set/fetch last payment hash

[TEST] stub get hot wallet method

[TASK] update account monitor to 2.2.0
[FIX] Correct the down methods for rollback
[FEATURE] Create New Fields and Update Existing

[TEST] Update Tests for New Schema

currency and amount are no longer required and will be deprecated
source account_id, amount and currency are new
destination account_id, amount and currency are new
memos is new