use aspectj 1.8.4 dependency since org.springframework:spring-aspects:4.0.9.RELEASE depends on that version

Author: lhotari

build.gradle

@@ -22,7 +22,7 @@ ext {
 
     antTraxVersion = "1.7.1"
     antVersion = "1.8.4"
-    aspectjVersion = "1.8.2"
+    aspectjVersion = "1.8.4"
     commonsCliVersion = "1.2"
     commonsCollectionsVersion = "3.2.1"
     commonsIOVersion = "2.2"