fix most of golint warnings

[Lagovas]

caught the moment when we all finished our work with code and renamed most of constants/identifiers according to golang conventions and reduced warnings from golint : )
left some warnings which related with package names with underscore where I am not sure that it need to be changed and some names of components

acra-censor/acra-censor_interfaces.go:36:6: type name will be used as acracensor.AcraCensorInterface by other packages, and that stutters; consider calling this Interface
cmd/acra-connector/connector-mode/connector-mode.go:21:1: don't use an underscore in package name
cmd/acra-translator/grpc_api/api_test.go:1:1: don't use an underscore in package name
cmd/acra-translator/grpc_api/decryptor.go:20:1: don't use an underscore in package name
cmd/acra-translator/http_api/decryptor.go:20:1: don't use an underscore in package name
cmd/acra-translator/http_api/decryptor_test.go:1:1: don't use an underscore in package name
cmd/acra-translator/http_api/mock_keystorage.go:17:1: don't use an underscore in package name
cmd/acra-translator/http_api/mock_poison_callback.go:17:1: don't use an underscore in package name
network/secure_session_wrapper.go:49:34: method GetPublicKeyForId should be GetPublicKeyForID
zone/utils.go:40:6: func name will be used as zone.ZoneDataToJSON by other packages, and that stutters; consider calling this DataToJSON

[vixentael]

That's awesome! I almost feel with my skin how clean our codebase becomes 😌😌😌