Upgrade to Gradle 1.7

https://build.springsource.org/browse/INT-B22X-391/log

build.gradle

@@ -1169,5 +1169,5 @@ task dist(dependsOn: assemble) {
 
 task wrapper(type: Wrapper) {
 	description = 'Generates gradlew[.bat] scripts'
-	gradleVersion = '1.2'
+	gradleVersion = '1.7'
 }

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Wed Oct 31 14:23:24 EDT 2012
+#Mon Nov 25 21:30:39 EET 2013
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=http\://services.gradle.org/distributions/gradle-1.2-bin.zip
+distributionUrl=http\://services.gradle.org/distributions/gradle-1.7-bin.zip

gradlew

@@ -61,9 +61,9 @@ while [ -h "$PRG" ] ; do
     fi
 done
 SAVED="`pwd`"
-cd "`dirname \"$PRG\"`/"
+cd "`dirname \"$PRG\"`/" >&-
 APP_HOME="`pwd -P`"
-cd "$SAVED"
+cd "$SAVED" >&-
 
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar