Add .gitignoret
Specify Tachyon master/worker heap size
Restart Tachyon master/worker when tachyon-env.sh.erb changes
Adding Berksfile
Adding Berksfile.lock to .gitignore
Add Tachyon master/worker debug port
Fix Tachyon restart on tachyon-env.sh changes and debug port
Fix syntax error in tachyon-env.sh.erb