Upgraded from PredictionIO 0.7.3 to 0.8.0
Wrote wrapper for Vagrant-internal pio command, updated help text
Updated Readme.md
Removed unnecessary instruction message
Added port forward for port 8000 for deployed instance
Updated Documentation link in Readme
Added port information to Readme file
Added line break
Added info about PredictionIO 8.1-SNAPSHOT branch
Updated for 0.8.1

Update README and pio-vagrant.sh script for 0.8.1 binaries.
Merge pull request #3 from tstonez/develop

Updated Vagrant installation for 0.8.1
0.8.2 release
Merge branch 'develop'