GEODE-884: Update README.md to include steps to build without running all tests.
GEODE-884: Update README.md to include steps to build without running all tests.

This closes #85

shankarh/geode,shankarh/geode,masaki-yamakawa/geode,charliemblack/geode,pdxrunner/geode,masaki-yamakawa/geode,masaki-yamakawa/geode,davebarnes97/geode,davebarnes97/geode,masaki-yamakawa/geode,masaki-yamakawa/geode,pivotal-amurmann/geode,jdeppe-pivotal/geode,jdeppe-pivotal/geode,charliemblack/geode,pdxrunner/geode,davebarnes97/geode,deepakddixit/incubator-geode,davinash/geode,smanvi-pivotal/geode,deepakddixit/incubator-geode,davebarnes97/geode,PurelyApplied/geode,charliemblack/geode,prasi-in/geode,pivotal-amurmann/geode,shankarh/geode,smgoller/geode,pdxrunner/geode,pivotal-amurmann/geode,davebarnes97/geode,pdxrunner/geode,charliemblack/geode,davinash/geode,pivotal-amurmann/geode,smanvi-pivotal/geode,davebarnes97/geode,jdeppe-pivotal/geode,smgoller/geode,shankarh/geode,PurelyApplied/geode,PurelyApplied/geode,masaki-yamakawa/geode,prasi-in/geode,davinash/geode,smgoller/geode,deepakddixit/incubator-geode,pdxrunner/geode,smanvi-pivotal/geode,smanvi-pivotal/geode,jdeppe-pivotal/geode,smgoller/geode,davinash/geode,PurelyApplied/geode,davebarnes97/geode,PurelyApplied/geode,davinash/geode,prasi-in/geode,shankarh/geode,PurelyApplied/geode,pivotal-amurmann/geode,deepakddixit/incubator-geode,jdeppe-pivotal/geode,deepakddixit/incubator-geode,deepakddixit/incubator-geode,deepakddixit/incubator-geode,charliemblack/geode,prasi-in/geode,smanvi-pivotal/geode,masaki-yamakawa/geode,smgoller/geode,smgoller/geode,pdxrunner/geode,smgoller/geode,davinash/geode,pdxrunner/geode,jdeppe-pivotal/geode,jdeppe-pivotal/geode,prasi-in/geode,PurelyApplied/geode,davinash/geode