Fix travis

Looks like it has to run in sudo, maybe because of packages

.travis.yml

@@ -22,7 +22,7 @@ addons:
       - mesa-common-dev
 
 sudo:
-  false
+  required
 
 notifications:
   email: true
@@ -45,7 +45,7 @@ script:
   - cd gmake &&
     make -j4 config=${CONFIG}dynamic_x64
 
-after_script:
+after_success:
   - export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:../lib/gmake/x64/:../extlibs/lib/gmake/x64/ &&
     cd ../../tests &&
     ./NazaraUnitTestsServer