[release/1.4.15] VERSION, cmd/geth: bumped version 1.4.15

VERSION

@@ -1 +1 @@
-1.4.14
+1.4.15

cmd/geth/main.go

@@ -47,11 +47,11 @@ import (
 )
 
 const (
-	clientIdentifier = "Geth"       // Client identifier to advertise over the network
+	clientIdentifier = "Geth"   // Client identifier to advertise over the network
-	versionMajor     = 1            // Major version component of the current release
+	versionMajor     = 1        // Major version component of the current release
-	versionMinor     = 4            // Minor version component of the current release
+	versionMinor     = 4        // Minor version component of the current release
-	versionPatch     = 14           // Patch version component of the current release
+	versionPatch     = 15       // Patch version component of the current release
-	versionMeta      = "prerelease" // Version metadata to append to the version string
+	versionMeta      = "stable" // Version metadata to append to the version string
 
 	versionOracle = "0xfa7b9770ca4cb04296cac84f37736d4041251cdf" // Ethereum address of the Geth release oracle
 )