Upgrade to Spring Boot 1.0.0.RC1 and other dependencies

complete/build.gradle

@@ -4,7 +4,7 @@ buildscript {
         mavenLocal()
     }
     dependencies {
-        classpath("org.springframework.boot:spring-boot-gradle-plugin:0.5.0.M6")
+        classpath("org.springframework.boot:spring-boot-gradle-plugin:1.0.0.RC1")
     }
 }