Issue-97 Fix deadlocks on close connection

[valinurovam]

Issue-97 Format code and fix spell issues, add some error handlers

[coveralls]

Pull Request Test Coverage Report for Build 6707611935

• 95 of 147 (64.63%) changed or added relevant lines in 7 files are covered.
• 4 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.9%) to 85.482%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
server/connection.go	8	10	80.0%
server/channel.go	42	46	91.3%
server/queueMethods.go	1	9	11.11%
server/vhost.go	4	17	23.53%
server/server.go	36	61	59.02%

Files with Coverage Reduction	New Missed Lines	%
server/channel.go	2	85.26%
server/connection.go	2	82.15%

Totals
Change from base Build 5691415362:	-0.9%
Covered Lines:	3156
Relevant Lines:	3692

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💛 - Coveralls