Standardize Build

The build now uses spring build conventions to simplify the build

Fixes gh-4284

taglibs/spring-security-taglibs.gradle

@@ -0,0 +1,25 @@
+apply plugin: 'io.spring.convention.spring-module'
+
+dependencies {
+	compile project(':spring-security-acl')
+	compile project(':spring-security-core')
+	compile project(':spring-security-web')
+	compile 'org.springframework:spring-aop'
+	compile 'org.springframework:spring-beans'
+	compile 'org.springframework:spring-context'
+	compile 'org.springframework:spring-core'
+	compile 'org.springframework:spring-expression'
+	compile 'org.springframework:spring-web'
+
+	provided 'javax.servlet.jsp:javax.servlet.jsp-api'
+	provided 'javax.servlet:javax.servlet-api'
+
+	testCompile 'org.codehaus.groovy:groovy-all'
+	testCompile spockDependencies
+
+	testRuntime 'javax.servlet.jsp.jstl:javax.servlet.jsp.jstl-api'
+}
+
+configure(project.tasks.withType(Test)) {
+	systemProperties['springSecurityVersion'] = version
+}

taglibs/taglibs.gradle

@@ -1,26 +0,0 @@
-// Taglibs build file
-apply plugin: 'groovy'
-
-dependencies {
-	compile project(':spring-security-core'),
-			project(':spring-security-web'),
-			project(':spring-security-acl'),
-			springCoreDependency,
-			"org.springframework:spring-beans:$springVersion",
-			"org.springframework:spring-aop:$springVersion",
-			"org.springframework:spring-context:$springVersion",
-			"org.springframework:spring-expression:$springVersion",
-			"org.springframework:spring-web:$springVersion"
-
-	provided 'javax.servlet.jsp:javax.servlet.jsp-api:2.2.1',
-			 "javax.servlet:javax.servlet-api:$servletApiVersion"
-
-	testCompile "org.codehaus.groovy:groovy-all:$groovyVersion",
-				spockDependencies
-
-	testRuntime "javax.servlet.jsp.jstl:javax.servlet.jsp.jstl-api:$jstlVersion"
-}
-
-configure(project.tasks.withType(Test)) {
-	systemProperties['springSecurityVersion'] = version
-}