Fix Brussels Build

- Update Spring IO plugin to resolve binary incompatability for tests
- Update Dependency Management Plugin which is required for Spring IO
  plugin update
- Update to Spring Boot 1.5.0.RC1. Necessary because new dependency
  management plugin does not work with Boot 1.4.x

Fixes gh-708

samples/boot/build.gradle

@@ -1,6 +1,7 @@
 buildscript {
 	repositories {
 		mavenCentral()
+		maven { url "https://repo.spring.io/plugins-snapshot" }
 	}
 	dependencies {
 		classpath("org.springframework.boot:spring-boot-gradle-plugin:$springBootVersion")
@@ -16,7 +17,7 @@ group = 'samples'
 
 dependencies {
 	compile project(':spring-session'),
-			"org.springframework.boot:spring-boot-starter-redis",
+			"org.springframework.boot:spring-boot-starter-data-redis",
 			"org.springframework.boot:spring-boot-starter-web",
 			"org.springframework.boot:spring-boot-starter-thymeleaf",
 			"org.springframework.boot:spring-boot-starter-security",

samples/findbyusername/build.gradle

@@ -1,6 +1,7 @@
 buildscript {
 	repositories {
 		mavenCentral()
+		maven { url "https://repo.spring.io/milestone" }
 	}
 	dependencies {
 		classpath("org.springframework.boot:spring-boot-gradle-plugin:$springBootVersion")
@@ -16,7 +17,7 @@ group = 'samples'
 
 dependencies {
 	compile project(':spring-session'),
-			"org.springframework.boot:spring-boot-starter-redis",
+			"org.springframework.boot:spring-boot-starter-data-redis",
 			"org.springframework.boot:spring-boot-starter-web",
 			"org.springframework.boot:spring-boot-starter-security",
 			"org.springframework.boot:spring-boot-starter-thymeleaf",

samples/grails3/build.gradle

@@ -59,7 +59,7 @@ dependencies {
 	testCompile "org.seleniumhq.selenium:selenium-htmlunit-driver:2.47.1"
 	testCompile "net.sourceforge.htmlunit:htmlunit:2.18"
 
-	compile "org.springframework.boot:spring-boot-starter-redis"
+	compile "org.springframework.boot:spring-boot-starter-data-redis"
 	compile 'org.springframework.session:spring-session:1.1.1.RELEASE'
 
 	compile 'org.grails.plugins:spring-security-core:3.0.4'

samples/httpsession-gemfire-boot/build.gradle

@@ -1,6 +1,7 @@
 buildscript {
 	repositories {
 		mavenCentral()
+		maven { url "https://repo.spring.io/milestone" }
 	}
 	dependencies {
 		classpath "org.springframework.boot:spring-boot-gradle-plugin:$springBootVersion"

samples/httpsession-jdbc-boot/build.gradle

@@ -1,6 +1,7 @@
 buildscript {
 	repositories {
 		mavenCentral()
+		maven { url "https://repo.spring.io/milestone" }
 	}
 	dependencies {
 		classpath("org.springframework.boot:spring-boot-gradle-plugin:$springBootVersion")

samples/httpsession-redis-json/build.gradle

@@ -1,6 +1,7 @@
 buildscript {
     repositories {
         mavenCentral()
+        maven { url "https://repo.spring.io/milestone" }
     }
     dependencies {
         classpath("org.springframework.boot:spring-boot-gradle-plugin:$springBootVersion")
@@ -22,7 +23,7 @@ ext['spring-security.version'] = springSecurityVersion
 
 dependencies {
     compile project(':spring-session'),
-            "org.springframework.boot:spring-boot-starter-redis",
+            "org.springframework.boot:spring-boot-starter-data-redis",
             "org.springframework.boot:spring-boot-starter-web",
             "org.springframework.boot:spring-boot-starter-thymeleaf",
             "org.springframework.boot:spring-boot-starter-security",

samples/mongo/build.gradle

@@ -1,6 +1,7 @@
 buildscript {
 	repositories {
 		mavenCentral()
+		maven { url "https://repo.spring.io/milestone" }
 	}
 	dependencies {
 		classpath("org.springframework.boot:spring-boot-gradle-plugin:$springBootVersion")

samples/websocket/build.gradle

@@ -1,6 +1,7 @@
 buildscript {
 	repositories {
 		mavenCentral()
+		maven { url "https://repo.spring.io/milestone" }
 	}
 	dependencies {
 		classpath("org.springframework.boot:spring-boot-gradle-plugin:$springBootVersion")