.travis.yml: Add post-install
.travis.yml: Add post-install

hanxue/linuxbrew,Linuxbrew/brew,Linuxbrew/brew,rwhogg/brew,maxim-belkin/brew,maxim-belkin/brew,hanxue/linuxbrew,rwhogg/brew,rwhogg/brew,maxim-belkin/brew,Linuxbrew/brew,Linuxbrew/brew,hanxue/linuxbrew