DATAMONGO-919 - Prepare Release 1.5.0.RC1

Upgrade AspectJ Maven plugin to recent version which enables building the module on java 8 using AspectJ 1.8.

Author: christophstrobl

spring-data-mongodb-cross-store/pom.xml

@@ -98,7 +98,7 @@
 			<plugin>
 				<groupId>org.codehaus.mojo</groupId>
 				<artifactId>aspectj-maven-plugin</artifactId>
-				<version>1.4</version>
+				<version>1.6</version>
 				<dependencies>
 					<dependency>
 						<groupId>org.aspectj</groupId>
@@ -126,7 +126,8 @@
 							<groupId>org.springframework</groupId>
 							<artifactId>spring-aspects</artifactId>
 						</aspectLibrary>
-					</aspectLibraries>
+					</aspectLibraries> 
+					<complianceLevel>${source.level}</complianceLevel>
 					<source>${source.level}</source>
 					<target>${source.level}</target>
 				</configuration>