upgrade to pylibcouchbase 1.2.0
upgrade to pylibcouchbase 1.2.0

couchbase/perfrunner,PaintScratcher/perfrunner,vmx/perfrunner,pavel-paulau/perfrunner,dkao-cb/perfrunner,pavel-paulau/perfrunner,couchbase/perfrunner,EricACooper/perfrunner,thomas-couchbase/perfrunner,mikewied/perfrunner,couchbase/perfrunner,EricACooper/perfrunner,EricACooper/perfrunner,dkao-cb/perfrunner,couchbase/perfrunner,EricACooper/perfrunner,thomas-couchbase/perfrunner,hsharsha/perfrunner,pavel-paulau/perfrunner,couchbase/perfrunner,PaintScratcher/perfrunner,hsharsha/perfrunner,pavel-paulau/perfrunner,mikewied/perfrunner,vmx/perfrunner,pavel-paulau/perfrunner,couchbase/perfrunner