Update dependencies (Spring 4.2.1, Tomcat 8.0.26, Jetty 9.3.3)

This commit also polishes build.gradle to use double quotes consistently.

spring-web-reactive/build.gradle

@@ -1,29 +1,30 @@
 buildscript {
 	repositories {
-		maven { url 'https://repo.spring.io/plugins-release' }
+		maven { url "https://repo.spring.io/plugins-release" }
 	}
 	dependencies {
-		classpath 'org.springframework.build.gradle:propdeps-plugin:0.0.7'
+		classpath "org.springframework.build.gradle:propdeps-plugin:0.0.7"
 	}
 }
 
-apply plugin: 'java'
-apply plugin: 'propdeps'
-apply plugin: 'propdeps-idea'
-apply plugin: 'propdeps-maven'
+apply plugin: "java"
+apply plugin: "propdeps"
+apply plugin: "propdeps-idea"
+apply plugin: "propdeps-maven"
 
 
 repositories {
 	mavenCentral()
-	maven { url 'https://oss.jfrog.org/libs-snapshot' }  // RxNetty 0.5.x snapshots
+	maven { url "https://oss.jfrog.org/libs-snapshot" }  // RxNetty 0.5.x snapshots
 }
 
 dependencies {
-	compile "org.springframework:spring-core:4.2.0.RELEASE"
-	compile "org.springframework:spring-web:4.2.0.RELEASE"
+	compile "org.springframework:spring-core:4.2.1.RELEASE"
+	compile "org.springframework:spring-web:4.2.1.RELEASE"
 	compile "org.reactivestreams:reactive-streams:1.0.0"
 	compile "io.projectreactor:reactor-stream:2.0.5.RELEASE"
 	compile "commons-logging:commons-logging:1.2"
+	compile "com.fasterxml.jackson.core:jackson-databind:2.6.1"
 
 	optional "io.reactivex:rxnetty-http:0.5.0-SNAPSHOT"
 	optional "io.reactivex:rxjava-reactive-streams:1.0.1"
@@ -31,22 +32,20 @@ dependencies {
 	provided "javax.servlet:javax.servlet-api:3.1.0"
 
 	testCompile "junit:junit:4.12"
-	testCompile "org.springframework:spring-test:4.2.0.RELEASE"
+	testCompile "org.springframework:spring-test:4.2.1.RELEASE"
 
-	testCompile 'org.apache.tomcat:tomcat-util:8.0.24'
-	testCompile 'org.apache.tomcat.embed:tomcat-embed-core:8.0.24'
+	testCompile "org.apache.tomcat:tomcat-util:8.0.26"
+	testCompile "org.apache.tomcat.embed:tomcat-embed-core:8.0.26"
 
-	testCompile 'org.eclipse.jetty:jetty-server:9.3.2.v20150730'
-	testCompile 'org.eclipse.jetty:jetty-servlet:9.3.2.v20150730'
+	testCompile "org.eclipse.jetty:jetty-server:9.3.3.v20150827"
+	testCompile "org.eclipse.jetty:jetty-servlet:9.3.3.v20150827"
 
 	testCompile "org.slf4j:slf4j-jcl:1.7.12"
 	testCompile "org.slf4j:jul-to-slf4j:1.7.12"
-	testCompile("log4j:log4j:1.2.16")
+	testCompile "log4j:log4j:1.2.16"
 
 	testCompile("org.mockito:mockito-core:1.10.19") {
-		exclude group: 'org.hamcrest', module: 'hamcrest-core'
+		exclude group: "org.hamcrest", module: "hamcrest-core"
 	}
-	testCompile("org.hamcrest:hamcrest-all:1.3")
+	testCompile "org.hamcrest:hamcrest-all:1.3"
 }
-
-