Fix typo in README
Remove forced minimum on yaxis. fixes gree/orion#14
README clarifications and initial user changes gree/orion#10

Added some install steps to the readme and made it so that the first
user (when not using NOAUTH) gets full permissions
Merge branch 'master' of https://github.com/gree/Orion
Merge pull request #15 from pcockwell/master

Fixing gree/Orion#14 and gree/Orion#10