Add logging level file config

[dgduncan]

Adds the ability to configure logging level from the file based config. It does this by creating a logger with a Levelvar during file based configuration and parsing the included. If no logging options are configured, INFO is assumed.

[coveralls]

Pull Request Test Coverage Report for Build 8891378200

Details

• 11 of 11 (100.0%) changed or added relevant lines in 1 file are covered.
• 2 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.03%) to 98.742%

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Files with Coverage Reduction	New Missed Lines	%
server.go	2	99.19%
<!--	Total:	2		-->

Totals
Change from base Build 8891359984:	-0.03%
Covered Lines:	6122
Relevant Lines:	6200

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💛 - Coveralls