update gradle wrapper to v2.11, update shadowJar plugin to 1.2.3
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 9411448..13372ae 100644
--- a/gradle/wrapper/gradle-wrapper.jar
+++ b/gradle/wrapper/gradle-wrapper.jar
Binary files differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 933d903..08ca730 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Thu Dec 17 08:05:02 IST 2015
+#Sun Feb 21 14:40:07 AEST 2016
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.9-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.11-all.zip
diff --git a/pst/build.gradle b/pst/build.gradle
index 0e53b8b..b49cd85 100644
--- a/pst/build.gradle
+++ b/pst/build.gradle
@@ -20,7 +20,7 @@
 //=============================================================================
 plugins {
     id 'java'
-    id 'com.github.johnrengelman.shadow' version '1.2.2'
+    id 'com.github.johnrengelman.shadow' version '1.2.3'
 }
 apply plugin: 'com.google.protobuf'