Try to fix issue with travis file

.travis.yml

@@ -21,6 +21,14 @@ addons:
     - gcc-4.8
     - g++-4.8
     - clang
+  coverity_scan:
+    project:
+      name: "DanielChappuis/reactphysics3d"
+      description: "Build submitted via Travis CI"
+      notification_email: chappuis.daniel@gmail.com
+      build_command_prepend: "mkdir build_directory; cd build_directory; cmake -G 'Unix Makefiles' -DCMAKE_BUILD_TYPE=Debug —DDOUBLE_PRECISION_ENABLED=False ../"
+      build_command:   "make"
+      branch_pattern: develop | master
 branches:
   only:
     - master