Fixed Travis supported Java JDK version.
Fixed Travis supported Java JDK version.

apetrucci/katharsis-framework,katharsis-project/katharsis-framework,katharsis-project/katharsis-framework,joewhite101/katharsis-core,adnovum/katharsis-framework,iMDT/katharsis-framework-j6,katharsis-project/katharsis-framework,adnovum/katharsis-framework,iMDT/katharsis-framework-j6,apetrucci/katharsis-framework,iMDT/katharsis-framework-j6,RentTheRunway/katharsis-core,dustinstanley/katharsis-framework,apetrucci/katharsis-framework,katharsis-project/katharsis-framework,apetrucci/katharsis-framework,adnovum/katharsis-framework,dustinstanley/katharsis-framework,iMDT/katharsis-framework-j6,apetrucci/katharsis-framework,adnovum/katharsis-framework,bjornharrtell/katharsis-core,zachncst/katharsis-core,katharsis-project/katharsis-framework