Update README.md

Help request

Merge pull request #52 from thedrow/patch-2

Merge pull request #51 from thedrow/patch-1

Compile with 2 jobs.

Enable ccache for faster builds.

Enable ccache if found for faster builds.

Merge pull request #48 from hmartiro/zerozez-master

if statements on installs

Merge branch 'master' of https://github.com/zerozez/redox into zerozez-master

Merge pull request #47 from hmartiro/feature/travis-ci

start redis server for make ci

Proper library paths for gtest

travis debugging

gtest working with make ci hopefully