Remove Ruby 1.9.2 from travis.yml. [ci skip]
Remove Ruby 1.9.2 from travis.yml. [ci skip]

flowerett/sidetiq,talentpad/sidetiq,brennovich/sidetiq,b1tw1se/sidetiq,tobiassvn/sidetiq,slategroup/sidetiq,PaulMest/sidetiq,danilogcarolino/sidetiq,akhiln/sidetiq,endofunky/sidetiq,endofunky/sidetiq,stanchan/sidetiq,sfroehler/sidetiq,kickserv/sidetiq,tobiassvn/sidetiq,sfroehler/sidetiq,vayu-technology/sidetiq,vayu-technology/sidetiq,brennovich/sidetiq,akhiln/sidetiq,b1tw1se/sidetiq,tomoyuki-yanagisawa/sidetiq-mod,grzlus/sidetiq,rjocoleman/sidetiq,PaulMest/sidetiq,Altonymous/sidetiq,slategroup/sidetiq,stanchan/sidetiq,flowerett/sidetiq,atpay/sidetiq,danilogcarolino/sidetiq,talentpad/sidetiq,tomoyuki-yanagisawa/sidetiq-mod,rjocoleman/sidetiq,kickserv/sidetiq,grzlus/sidetiq,atpay/sidetiq