Logger fixes. Fix #37

[penguinolog]

• Use class name as logger prefix
• Use normal repr instead of manual '{}' code
• On reconnect/close use client logger instead of formatting to str
• Single used log templates moved to the use place

[coveralls]

Pull Request Test Coverage Report for Build 119

• 4 of 4 (100.0%) changed or added relevant lines in 4 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 117:	0.0%
Covered Lines:	942
Relevant Lines:	942

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💛 - Coveralls