Include unzip, p7zip, and unrar-free into AppImage

pkg/appimage/appimage.sh

@@ -19,6 +19,10 @@ install -D -m 755 /lib/x86_64-linux-gnu/libssl.so.1.0.0 ${PKGNAME}.AppDir/usr/li
 install -D -m 755 /lib/x86_64-linux-gnu/libcrypto.so.1.0.0 ${PKGNAME}.AppDir/usr/lib/libcrypto.so.1.0.0
 install -D -m 755 /lib/x86_64-linux-gnu/libz.so.1 ${PKGNAME}.AppDir/usr/lib/libz.so.1
 
+install -D -m 755 /usr/bin/unzip ${PKGNAME}.AppDir/usr/bin/unzip
+install -D -m 755 /usr/lib/p7zip/7zr ${PKGNAME}.AppDir/usr/bin/7z
+install -D -m 755 /usr/bin/unrar-free ${PKGNAME}.AppDir/usr/bin/unrar
+
 ./squashfs-root/AppRun ${PKGNAME}.AppDir/usr/share/applications/${PKGNAME}.desktop -appimage
 
 mv *.AppImage ${PKGNAME}-${PKGVER}-${PKGREL}-x86_64.AppImage

scripts/build-docker.sh

@@ -42,6 +42,7 @@ build_appimage() {
     #apt -y install build-essential qt5-default libqt5websockets5-dev
     #apt -y install cmake libssl-dev libcurl4-gnutls-dev libxpm-dev
     apt -y install libssl1.0.0 zlib1g
+    apt -y install unzip p7zip unrar-free
 
     add-apt-repository -y ppa:beineri/opt-qt593-trusty
     echo 'deb http://download.opensuse.org/repositories/home:/TheAssassin:/AppImageLibraries/xUbuntu_14.04/ /' > /etc/apt/sources.list.d/curl-httponly.list