Travis: update artifact packaging

.travis.yml

@@ -15,10 +15,12 @@ matrix:
             packages:
             - libsdl2-dev
             - libfltk1.3-dev
+            - gzip
         script:
           - cd unix
           - make
-          - cp sdlpal ../deploy
+          - gzip sdlpal
+          - mv sdlpal.gz ../deploy/sdlpal-linux.gz
           - make clean
           - make check
           - cd ..
@@ -30,9 +32,10 @@ matrix:
         addons:
           apt:
             packages:
-            - binutils-mingw-w64-i686 
-            - gcc-mingw-w64-i686 
-            - g++-mingw-w64-i686 
+            - binutils-mingw-w64-i686
+            - gcc-mingw-w64-i686
+            - g++-mingw-w64-i686
+            - zip
         before_install:
           - cd win32
           - wget http://libsdl.org/release/SDL2-devel-2.0.5-mingw.tar.gz
@@ -44,7 +47,8 @@ matrix:
           - cd win32
           - make HOST=i686-w64-mingw32-
           - i686-w64-mingw32-strip sdlpal.exe
-          - cp sdlpal.exe ../deploy/sdlpal-mingw.exe
+          - zip sdlpal-mingw32.zip sdlpal.exe
+          - mv sdlpal-mingw32.zip ../deploy/
           - cd ..
 
       - os: linux