Add deploy.sh script to generate Linux AppImage

To be run after starndard Linux build

.gitignore

@@ -13,6 +13,7 @@ Makefile
 *.prl
 *.swp
 *.user
+*.AppImage
 
 # osx noise
 .DS_Store

travis/linux/deploy.sh

@@ -0,0 +1,43 @@
+#!/bin/sh
+
+### This script should be run from GoldenCheetah root directory after build
+if [ ! -x src/GoldenCheetah ]
+then echo "Build GoldenCheetah and execute from distribution root"; exit 1
+fi
+
+### Create AppDir and start populating
+mkdir -p appdir
+# Executable
+cp src/GoldenCheetah appdir
+# Desktop file
+cat >appdir/GoldenCheetah.desktop <<EOF
+[Desktop Entry]
+Version=1.0
+Type=Application
+Name=GoldenCheetah
+Comment=Cycling Power Analysis Software.
+Exec=GoldenCheetah
+Icon=gc
+EOF
+# Icon
+cp ./src/Resources/images/gc.png appdir/
+
+### Download current version of linuxdeployqt
+wget -c https://github.com/probonopd/linuxdeployqt/releases/download/continuous/linuxdeployqt-continuous-x86_64.AppImage
+chmod a+x linuxdeployqt-continuous-x86_64.AppImage
+
+### Deploy to AppDir and generate AppImage
+# -qmake=path-to-qmake-used-for-build option is necessary if the right qmakei
+# version is not first in PATH, check using qmake --version
+./linuxdeployqt-continuous-x86_64.AppImage appdir/GoldenCheetah -verbose=2 -bundle-non-qt-libs -exclude-libs=libqsqlmysql,libqsqlpsql,libnss3,libnssutil3 -appimage
+
+### Cleanup
+rm linuxdeployqt-continuous-x86_64.AppImage
+rm -rf appdir
+
+### Minimum Test - Result is ./GoldenCheetah-x86_64.AppImage
+if [ ! -x ./GoldenCheetah-x86_64.AppImage ]
+then echo "AppImage not generated, check the errors"; exit 1
+fi
+./GoldenCheetah-x86_64.AppImage --version
+exit