GH-376: Do not mention minimum SF version

Fixes spring-projects/spring-kafka#376

To avoid unexpected community tests against SF 3.x or even 2.5.x, just
remove that expression from the Reference Manual and tell a strict
version the Framework is build on

build.gradle

@@ -84,9 +84,9 @@ subprojects { subproject ->
 		log4jVersion = '1.2.17'
 		mockitoVersion = '1.10.19'
 		scalaVersion = '2.11'
-		slf4jVersion = '1.7.21'
+		slf4jVersion = '1.7.22'
 		springRetryVersion = '1.1.3.RELEASE'
-		springVersion = '4.3.9.RELEASE'
+		springVersion = '4.3.10.RELEASE'
 
 		idPrefix = 'kafka'
 

src/reference/asciidoc/quick-tour.adoc

@@ -29,9 +29,7 @@ compile 'org.springframework.kafka:spring-kafka:{spring-kafka-version}'
 ===== Compatibility
 
 - Apache Kafka 0.10.2.1
-- Tested with Spring Framework version dependency is 4.3.9 but it is expected that the framework will work with earlier
-versions of Spring.
-- Annotation-based listeners require Spring Framework 4.1 or higher, however.
+- Spring Framework 4.3.x
 - Minimum Java version: 7.
 
 ===== Very, Very Quick