Merge pull request #18 from centrifuge/fix/gsrpc_event

Fix GSRPC DispatchError code

go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/ChainSafe/chainbridge-utils v1.0.6
 	github.com/ChainSafe/log15 v1.0.0
 	github.com/aristanetworks/goarista v0.0.0-20200609010056-95bcf8053598 // indirect
-	github.com/centrifuge/go-substrate-rpc-client v2.0.0-rc6.2+incompatible
+	github.com/centrifuge/go-substrate-rpc-client v2.0.0-rc6.3+incompatible
 	github.com/deckarep/golang-set v1.7.1 // indirect
 	github.com/ethereum/go-ethereum v1.9.25
 	github.com/gorilla/websocket v1.4.2 // indirect

go.sum

@@ -61,8 +61,8 @@ github.com/btcsuite/winsvc v1.0.0/go.mod h1:jsenWakMcC0zFBFurPLEAyrnc/teJEM1O46f
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/centrifuge/go-substrate-rpc-client v2.0.0-alpha.3+incompatible/go.mod h1:GBMLH8MQs5g4FcrytcMm9uRgBnTL1LIkNTue6lUPhZU=
 github.com/centrifuge/go-substrate-rpc-client v2.0.0-alpha.5+incompatible/go.mod h1:GBMLH8MQs5g4FcrytcMm9uRgBnTL1LIkNTue6lUPhZU=
-github.com/centrifuge/go-substrate-rpc-client v2.0.0-rc6.2+incompatible h1:Ju9dSBd6VZz62tURBRZ9OcY5LGLxZ6g9/T0yKG3e/eo=
-github.com/centrifuge/go-substrate-rpc-client v2.0.0-rc6.2+incompatible/go.mod h1:GBMLH8MQs5g4FcrytcMm9uRgBnTL1LIkNTue6lUPhZU=
+github.com/centrifuge/go-substrate-rpc-client v2.0.0-rc6.3+incompatible h1:/+UqKQjEWOZ8N1dhtdKNzscEUy0jzByCud2z/r/Wu4g=
+github.com/centrifuge/go-substrate-rpc-client v2.0.0-rc6.3+incompatible/go.mod h1:GBMLH8MQs5g4FcrytcMm9uRgBnTL1LIkNTue6lUPhZU=
 github.com/cespare/cp v0.1.0 h1:SE+dxFebS7Iik5LK0tsi1k9ZCxEaFX4AjQmoyA+1dJk=
 github.com/cespare/cp v0.1.0/go.mod h1:SOGHArjBr4JWaSDEVpWpo/hNg6RoKrls6Oh40hiwW+s=
 github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=