v0.7.1

[Revertron]

Very crucial update!

• This release fixes a rare bug that lead to an infinite loop in calculation of signers.
• Also, there is a fix of block difficulty checks.
• Fixed very chatty logs about connection counts and other status info.
• Added new parameter -t or --trace. From now on -d will enable debug log level (above info), and -t will enable trace level (above debug). More log levels - more flexibility.

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This discussion was created from the release v0.7.1.