fix travis

.travis.yml

@@ -28,16 +28,11 @@ addons:
       - libirrlicht-dev
       - libgl1-mesa-dev
       - libglu-dev
-  homebrew:
-    packages:
-      - freetype
-      - libevent
-      - sqlite
-      - dylibbundler
 before_install:
 - git submodule update --init --recursive
 # - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo ln -s /usr/bin/gcc-6 /usr/local/bin/gcc; sudo ln -s /usr/bin/g++-6 /usr/local/bin/g++; fi
-#  brew install freetype libevent sqlite lua dylibbundler;
+  brew update
+  brew install freetype libevent sqlite dylibbundler;
 - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then 
   sudo rm -rf /usr/local/include/unistring;
   sudo rm -rf /usr/local/include/lzma;