Standardize Build

The build now uses spring build conventions to simplify the build

Fixes gh-4284

aspects/aspects.gradle

@@ -1,10 +0,0 @@
-
-dependencies {
-	compile project(':spring-security-core'),
-			springCoreDependency,
-			"org.springframework:spring-beans:$springVersion",
-			"org.springframework:spring-context:$springVersion"
-
-	testCompile 'aopalliance:aopalliance:1.0',
-				"org.springframework:spring-aop:$springVersion"
-}

aspects/spring-security-aspects.gradle

@@ -0,0 +1,12 @@
+apply plugin: 'io.spring.convention.spring-module'
+apply plugin: 'aspectj'
+
+dependencies {
+	compile project(':spring-security-core')
+	compile 'org.springframework:spring-beans'
+	compile 'org.springframework:spring-context'
+	compile 'org.springframework:spring-core'
+
+	testCompile 'aopalliance:aopalliance'
+	testCompile 'org.springframework:spring-aop'
+}