Try to start MySQL server on mac from travis

Author: ranjanan

.travis.yml

@@ -10,6 +10,7 @@ julia:
 before_script:
   - export OLD_PATH=$LD_LIBRARY_PATH
   - export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:`mariadb_config --libs | cut -d ' ' -f1 | sed 's/-L//'`
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then julia -e 'run(`/Users/travis/.julia/v$(VERSION.major).$(VERSION.minor)/Homebrew/deps/usr/bin/mysql.server start`)'; fi
 after_script:
   - export LD_LIBRARY_PATH=$OLD_PATH
   - unset OLD_PATH