* fixed pagination for querying for validators
* wip: decoupling block signing from ticketbook issuance
* added ecash contract query for latest deposit
* parking the branch: wrappers for merkle tree for issued ticketbooks
* make nym-api store merkle trees of issued ticketbooks
* nym-api route for returning all deposits alongside merkle root
* return index alongside deposit id
* persisting merkle index alongside issued ticketbook details
* wip
* responses for issued deposit challenges
* nym-api cleanup
* verification of issued partial ticketbooks
* cleanup of rewarder code
* make the rest of codebase compile
* updated config file
* improved logging
* fixed division by zero if there were no ticketbooks issued in a day
* using correct budget when rewarding operators
* fixed routes for issued data
* fixed ecash test fixture
* fixed incorrect deserialisation of expiration_date param
* additional bugfixes for ticketbook issuance
* more fixes and updated tests
* fixed formatting after rebasing
* updated schema
* fixed edge case unit test