Re-introduce fat executable jar for release packaging

Prior to this fix, running `./package/osx/create_app.sh` produced a
"Main application jar is missing." error. Now the script works as
expected.

.gitignore

@@ -26,3 +26,4 @@ build
 desktop.ini
 */target/*
 *.class
+deploy

build.gradle

@@ -3,7 +3,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.github.jengelman.gradle.plugins:shadow:2.0.2'
+        classpath 'com.github.jengelman.gradle.plugins:shadow:2.0.4'
         classpath files('gradle/witness/gradle-witness.jar')
     }
 }
@@ -12,6 +12,7 @@ apply plugin: 'java'
 apply plugin: 'application'
 apply plugin: 'maven'
 apply plugin: 'witness'
+apply plugin: 'com.github.johnrengelman.shadow'
 
 group = 'network.bisq'
 version = '-SNAPSHOT'

package/osx/create_app.sh

@@ -1,13 +1,16 @@
 #!/bin/bash
 
-cd ../../
+cd $(dirname $0)/../../
+
 mkdir -p deploy
 
 set -e
 
 version="0.7.0"
 
-./gradlew build
+./gradlew shadowJar
+
+EXE_JAR=build/libs/bisq-desktop--SNAPSHOT-all.jar
 
 linux32=build/vm/vm_shared_ubuntu14_32bit
 linux64=build/vm/vm_shared_ubuntu
@@ -16,17 +19,14 @@ win64=build/vm/vm_shared_windows
 
 mkdir -p $linux32 $linux64 $win32 $win64
 
-# temp copy
-cp build/libs/bisq-desktop--SNAPSHOT.jar "build/libs/bisq-desktop.jar"
-
-cp build/libs/bisq-desktop.jar "deploy/Bisq-$version.jar"
+cp $EXE_JAR "deploy/Bisq-$version.jar"
 
 # copy app jar to VM shared folders
-cp build/libs/bisq-desktop.jar "$linux32/Bisq-$version.jar"
-cp build/libs/bisq-desktop.jar "$linux64/Bisq-$version.jar"
+cp $EXE_JAR "$linux32/Bisq-$version.jar"
+cp $EXE_JAR "$linux64/Bisq-$version.jar"
 # At windows we don't add the version nr as it would keep multiple versions of jar files in app dir
-cp build/libs/bisq-desktop.jar "$win32/Bisq.jar"
-cp build/libs/bisq-desktop.jar "$win64/Bisq.jar"
+cp $EXE_JAR "$win32/Bisq.jar"
+cp $EXE_JAR "$win64/Bisq.jar"
 
 if [ -z "$JAVA_HOME" ]; then
     JAVA_HOME=$(/usr/libexec/java_home)