Added Go 1.5 to travis.yml
Added Go 1.5 to travis.yml

atomx/aerospike-client-go,aerospike/aerospike-client-go,oldmantaiter/aerospike-client-go,archsaber/aerospike-client-go,matematik7/aerospike-client-go,aerospike/aerospike-client-go,archsaber/aerospike-client-go,oldmantaiter/aerospike-client-go,atomx/aerospike-client-go,matematik7/aerospike-client-go