[FEATURE] move rippled connection check to express app
[TASK] remove unused methods from payments
[TASK] adopt error callback method in server info
[TASK] add account_new entry to index response
[TASK] remove ensureConnected from balances
[FEATURE] introduce ApiError and apiError response handler
[TASK] adopt account class to style and Error handling
[FIX] missing next parameter
[FIX] ensureConnected crashing if _getServer() returns null
[TASK] remove unused variable status
[FEATURE] check remote connected for all routes besides `/`
Merge pull request #137 from geertweening/develop

[FEATURE] move remote connected check to router