Don't use --init-appdir

The '--init-appdir' argument was removed from the linuxdeploy cli so we must not use it any more.

Author: azubieta

build_appimages.sh

@@ -21,7 +21,7 @@ build_appimage() {
 
     echo "Building AppImage for ${APP_NAME}"
 
-    ${LINUXDEPLOY_BIN} --app-name ${APP_NAME} --appdir ${APP_DIR} --init-appdir || return 1
+    ${LINUXDEPLOY_BIN} --app-name ${APP_NAME} --appdir ${APP_DIR} || return 1
     ${LINUXDEPLOY_PLUGIN_QT_BIN} --appdir ${APP_DIR} || return 1
     ${LINUXDEPLOY_BIN} --app-name ${APP_NAME} --appdir ${APP_DIR} --output appimage || return 1