Merge pull request #553 from skywinder/master

Author: yaroslavyaroslav

Sources/web3swift/Web3/Web3+GasOracle.swift

@@ -128,7 +128,10 @@ extension Web3 {
             case let .exact(number): latestBlockNumber = number
             }
 
-            guard latestBlockNumber != 0 else { return [] }
+            /// checking if latest block number is greather than number of blocks to take in account
+            /// we're ignoring case when `latestBlockNumber` == `blockCount` since it's unlikely case
+            /// which we could neglect
+            guard latestBlockNumber > blockCount else { return [] }
 
             // TODO: Make me work with cache
             let lastNthBlockGasPrice = try (latestBlockNumber - blockCount ... latestBlockNumber)

web3swift.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |spec|
     spec.name         = 'web3swift'
-    spec.version      = '2.6.2'
+    spec.version      = '2.6.3'
     spec.ios.deployment_target = "9.0"
     spec.osx.deployment_target = "10.12"
     spec.license      = { :type => 'Apache License 2.0', :file => 'LICENSE.md' }