Fixed up the launcher project structure and naming

AppImage/build-linux.sh

@@ -0,0 +1,73 @@
+#!/bin/bash
+
+set -e
+
+PACKR_VERSION="runelite-1.0"
+
+rm -f 2009scape.AppImage
+
+# Check if there's a client jar file - If there's no file the AppImage will not work but will still be built.
+if ! [ -e 2009scape.jar ]
+then
+  echo "2009scape.jar not found, exiting"
+  exit 1
+fi
+
+if ! [ -f OpenJDK8U-jre_x64_linux_hotspot_8u275b01.tar.gz ] ; then
+    curl -Lo OpenJDK8U-jre_x64_linux_hotspot_8u275b01.tar.gz \
+	https://github.com/AdoptOpenJDK/openjdk8-binaries/releases/download/jdk8u275-b01/OpenJDK8U-jre_x64_linux_hotspot_8u275b01.tar.gz
+fi
+
+rm -f packr.jar
+curl -o packr.jar https://libgdx.badlogicgames.com/ci/packr/packr.jar
+
+# packr requires a "jdk" and pulls the jre from it - so we have to place it inside
+# the jdk folder at jre/
+if ! [ -d linux-jdk ] ; then
+    tar zxf OpenJDK8U-jre_x64_linux_hotspot_8u275b01.tar.gz 
+    mkdir linux-jdk
+    mv jdk8u275-b01-jre linux-jdk/jre
+fi
+
+if ! [ -f packr_${PACKR_VERSION}.jar ] ; then
+    curl -Lo packr_${PACKR_VERSION}.jar \
+        https://github.com/runelite/packr/releases/download/${PACKR_VERSION}/packr.jar
+fi
+
+echo "18b7cbaab4c3f9ea556f621ca42fbd0dc745a4d11e2a08f496e2c3196580cd53  packr_${PACKR_VERSION}.jar" | sha256sum -c
+
+java -jar packr_${PACKR_VERSION}.jar \
+    --platform \
+    linux64 \
+    --jdk \
+    linux-jdk \
+    --executable \
+    2009scape \
+    --classpath \
+    2009scape.jar \
+    --mainclass \
+    fox.Launcher \
+    --output \
+    native-linux/2009scape.AppDir/ \
+    --resources \
+    appimage/2009scape.desktop \
+    appimage/2009scape.png
+
+cp appimage/2009scape.png native-linux/2009scape.AppDir
+
+# Symlink AppRun -> 2009scape
+pushd native-linux/2009scape.AppDir/
+ln -s 2009scape AppRun
+popd
+
+curl -Lo appimagetool-x86_64.AppImage https://github.com/AppImage/AppImageKit/releases/download/12/appimagetool-x86_64.AppImage
+chmod 755 appimagetool-x86_64.AppImage
+
+./appimagetool-x86_64.AppImage \
+	native-linux/2009scape.AppDir/ \
+	native-linux/2009scape.AppImage
+
+echo "Cleaning up.."
+
+mv native-linux/2009scape.AppImage .
+rm -rf packr packr.jar packr_runelite-1.0.jar native-linux linux-jdk OpenJDK8U-jre_x64_linux_hotspot_8u275b01.tar.gz appimagetool-x86_64.AppImage