Update build scripts, Automate version number

package/linux/create_app.sh

@@ -0,0 +1,44 @@
+#!/bin/bash
+
+cd ../../
+
+set -e
+
+# Extract the version number. buildVersion is used for ever increasing integer at UpdateFX. fullVersion contains major and minor version + buildVersion 
+buildVersion=$( sed -n 's/^.*final int BUILD_VERSION = //p' gui/src/main/java/io/bitsquare/app/gui/UpdateProcess.java )
+# remove trailing;
+buildVersion="${buildVersion:0:${#buildVersion}-1}"
+fullVersion=$( sed -n 's/^.*final String VERSION = "//p' gui/src/main/java/io/bitsquare/app/gui/BitsquareAppMain.java )
+# remove trailing ";
+fullVersion="${fullVersion:0:${#fullVersion}-2}"
+
+echo buildVersion = $buildVersion
+echo fullVersion = $fullVersion
+
+mvn clean package -DskipTests -Dmaven.javadoc.skip=true
+cp gui/target/shaded.jar gui/updatefx/builds/$buildVersion.jar
+
+# edit url
+java -jar ./updatefx/updatefx-app-1.2.jar --url=http://bitsquare.io/updateFX/ gui/updatefx
+
+# Note: fakeroot needs to be installed on linux
+$JAVA_HOME/bin/javapackager \
+    -deploy \
+    -BappVersion=$fullVersion \
+    -Bcategory=Finance \
+    -Bemail=team@bitsquare.io \
+    -BlicenseType=GPLv3 \
+    -BlicenseFile=LICENSE
+    -Bicon=package/linux/icon.png \
+    -native deb \
+    -name Bitsquare \
+    -title Bitsquare \
+    -vendor Bitsquare \
+    -outdir gui/deploy \
+    -srcfiles gui/updatefx/builds/processed/$buildVersion.jar \
+    -appclass io.bitsquare.app.gui.BitsquareAppMain \
+    -outfile Bitsquare
+
+cd package/linux
+
+# TODO: Figure out where LICENSE file goes so distros don't complain about "low quality" packages.