Update gradle wrapper, bump disruptor version to 3.4, change source v…

…ersion to 1.7.

build.gradle

@@ -24,7 +24,7 @@ apply plugin: 'idea'
 defaultTasks 'build'
 
 group = 'com.lmax'
-version = new Version(major: 3, minor: 3, revision: 7)
+version = new Version(major: 3, minor: 4, revision: 0)
 
 ext {
     fullName = 'Disruptor Framework'
@@ -61,8 +61,8 @@ idea.module {
     scopes.TEST.plus += [ configurations.perfCompile ]
 }
 
-sourceCompatibility = 1.6
-targetCompatibility = 1.6
+sourceCompatibility = 1.7
+targetCompatibility = 1.7
 
 
 compileJava {

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,5 @@
-#Thu Sep 28 12:54:38 NZDT 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.2-bin.zip

gradlew

@@ -33,11 +33,11 @@ DEFAULT_JVM_OPTS=""
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"
 
-warn ( ) {
+warn () {
     echo "$*"
 }
 
-die ( ) {
+die () {
     echo
     echo "$*"
     echo
@@ -155,7 +155,7 @@ if $cygwin ; then
 fi
 
 # Escape application args
-save ( ) {
+save () {
     for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
     echo " "
 }