Update dependencies

- uses newer version of go-ethereum required for go1.11

vendor/github.com/btcsuite/btcd/sample-btcd.conf

@@ -167,6 +167,9 @@
 ; Must not include characters '/', ':', '(' and ')'.
 ; uacomment=
 
+; Disable committed peer filtering (CF).
+; nocfilters=1
+
 ; ------------------------------------------------------------------------------
 ; RPC server options - The following options control the built-in RPC server
 ; which is used to control and query information from a running btcd process.
@@ -262,16 +265,6 @@
 ; rejectnonstd=1
 
 
-; ------------------------------------------------------------------------------
-; Optional Transaction Indexes
-; ------------------------------------------------------------------------------
-
-; Build and maintain a full address-based transaction index.
-; addrindex=1
-; Delete the entire address index on start up, then exit.
-; dropaddrindex=0
-
-
 ; ------------------------------------------------------------------------------
 ; Optional Indexes
 ; ------------------------------------------------------------------------------
@@ -284,6 +277,9 @@
 ; searchrawtransactions RPC available.
 ; addrindex=1
 
+; Delete the entire address index on start up, then exit.
+; dropaddrindex=0
+
 
 ; ------------------------------------------------------------------------------
 ; Signature Verification Cache
@@ -302,7 +298,7 @@
 ; Enable built-in CPU mining.
 ;
 ; NOTE: This is typically only useful for testing purposes such as testnet or
-; simnet since the difficutly on mainnet is far too high for CPU mining to be
+; simnet since the difficulty on mainnet is far too high for CPU mining to be
 ; worth your while.
 ; generate=false