Ulord pow to pos update

use pos produce block .
masternode must register as masternode member
github code is not update ,please use ulordchain_1_1_8_6.tgz release

Update 1.1.7

1.Add a new rpc interface , judeg utaddress is or not valid .
2.Modify MIN_BLOCKS_TO_KEEP set 18 , reduce rollback check blocks .
3.In height 280112 , release 0.28 billion ut coin. for pow change pos.

V.1.1.6

1.Add a new checkpoint.
2.Modify some error messages with the rpcrawtransaction .
3.Increase listaddressbalances RPC interface, display the addresses and balances that are not less than the specified amount.

V.1.1.5: Update rpcmasternode.cpp

1. Improve the message synchronization mechanism of the master node and resolve the block data synchronization interruption caused by the inconsistency of the master node list;
2. Improve the broadcast information mechanism of the master node to prevent the problem that the update process of the master node causes the deadlock of the daemon;
3. Improve the check mechanism of the state of the primary node and reduce the CPU utilization of the server.
4. Cleaned up unnecessary log output and reduced resource occupation.

version-1-1-4

update send mnb cmd
user this cmd can recovery masternode if you think it is out work
./ulord-cli masternode start-all

V.1.1.3

The new version solves the problem of software withdrawal due to the asynchronous list of master nodes.

V.1.1.2

1.The new version is more stable.
2.Optimization of some RPC commands.

V.1.1.1

1.The new version solves the daemon deadlock and causes the process to hang up.
2.Changed the time format of some RPC commands.
3.Update coinbase check mechanism.
4.Improved sendfromAtoB command.

V.1.1.0

Specific details are as follows:

1. Add master node functions, including proposal application function, master node voting function, and budget issuing function;
2. Add cross-chain atomic trading interface, supporting BTC, LTC, Dash, etc.；
3. Add certificate verification method for master node upgrading;
4. Optimize the codes for ulord mining;
5. Optimize the configuration file ulord.conf, and add the master node configuration part;
6. Add the interface for content on chain, allowing users to store 80 bytes of data per transaction;
7. Add the interface for change integration function, which can send the change of other addresses in the wallet to the specified address;
8. Release a web tool for configuring the master node online, allowing users to configure the master node online through the master node IP (https://github.com/UlordChain/Ulord-Web);
9. Introduce two types of message structures - ping and broadcast to facilitate synchronization of the master node.

V.1.0.0

UlordCore version 1.0.0