Refactor IO connection creation

Change-Id: I77e741c0f815dafc2f37b3e33bcd5bb2648e8334
Reviewed-on: http://review.couchbase.org/32619
Reviewed-by: Brett Lawson <brett19@gmail.com>
Tested-by: Mark Nunberg <mnunberg@haskalah.org>
HTTP: Use "Easy" I/O

Change-Id: I3ceab99c05552cd1081f9f2648fa031a463e149b
Reviewed-on: http://review.couchbase.org/32739
Reviewed-by: Brett Lawson <brett19@gmail.com>
Tested-by: Mark Nunberg <mnunberg@haskalah.org>
http: Refresh configuration on error

Change-Id: Id94b18874f503873c2fa431ba85e6a83010e7b10
Reviewed-on: http://review.couchbase.org/32742
Reviewed-by: Brett Lawson <brett19@gmail.com>
Tested-by: Mark Nunberg <mnunberg@haskalah.org>