Bumps core to 1.0.3

Author: Josh Deffibaugh

build.gradle

@@ -52,7 +52,7 @@ ext {
     min_sdk_version = 10
     target_sdk_version = 24
 
-    java_core_ver = "1.0.3-SNAPSHOT"
+    java_core_ver = "1.0.3"
     android_logger_ver = "1.3.1"
     support_annotations_ver = "24.2.1"
     junit_ver = "4.12"