[FEATURE] Use sequelize 'include' to provide fromAddress and toAddress to rippleTransactions returned from list_outgoing_payments
[FIX] JSHint errors
[FIX] Get all model tests successfully passing and setup grunt to properly run them
[FIX] store memos and invoice_id
[TASK] Fixed issue with travis build and added coveralls and istanbul for coverage
[FIX] The order of arguments to run a psql command 

In Linux it appears as if the -U needs to come before the psql command, this fix updates that.
[DOC] release notes for 3.32.0
[TASK] bump version # to 3.32.0
[FIX] API tests with stubs for RippleRestClient and add them to the 'npm test' command
[FEATURE] incoming payment class

validate incoming payments, not require validation, replace process
with new class

[TEST] Incoming Payment class

[TASK] ignore coverage, add lodash
[FEATURE] Ripple Rest Error handler class

refactor outgoing_payment class to use the new Ripple Rest Error
handler class

[TEST] Ripple Rest Error Handler
[FEATURE] gatewayd.features for beta feature flags.