* First tests for API handlers
* Test chain UTXO handler
* Add test sumtrees handlers
* Fix typo
* Removed unused logger
* Update bitflags to ^1.0
* Missing test for bitflags update
* Moved test to grin directory
* Remove tests dependencies
* Add API P2P tests
* Fix hex string commitment
* Fix conflicting port
* Fix directory conflict and server port
* Wait for at least one block is mined on Travis