Update Readme.md

Added briefly the pistatsd info
Updated error handling
Merge pull request #1 from noahdela/create-pistatsd-dev

Create pistatsd dev
added pika note
Merge pull request #2 from noahdela/master

added pika note
Merged changed working pistatsview.py (some edits in args parsing) and my Readme.md changes
Merge branch 'master' of https://github.com/rk126/pub-sub-netapp into pistatsview_dev
Minor comments added in pistatsview.py