Switch to Bismuth snapshots

build.gradle

@@ -53,7 +53,7 @@ configure(allprojects) { project ->
 	ext.kotlinVersion        = "1.2.31"
 	ext.log4jVersion         = "2.11.0"
 	ext.nettyVersion         = "4.1.22.Final"
-	ext.reactorVersion       = "Bismuth-SR7"
+	ext.reactorVersion       = "Bismuth-BUILD-SNAPSHOT"
 	ext.rxjavaVersion        = "1.3.7"
 	ext.rxjavaAdapterVersion = "1.2.1"
 	ext.rxjava2Version       = "2.1.12"
@@ -140,6 +140,7 @@ configure(allprojects) { project ->
 	repositories {
 		maven { url "https://repo.spring.io/libs-release" }
 		maven { url "https://repo.spring.io/milestone" }  // for AspectJ 1.9 beta
+		maven { url "https://repo.spring.io/snapshot" }  // for Reactor
 	}
 
 	dependencies {