Merge pull request #6 from joechong88/patch-1

Update README.md
Update README.md

Added pre-requisites discovered during the setup of a virtual environment for a green field environment - ant, maven, gfortran
Merge pull request #7 from joechong88/patch-2

Update README.md
gmail_slurper.py - Handle Unicode write

Added a temporary Avro writer tmp to handle the UnicodeDecodeError when writing into Avro storage
Merge pull request #9 from joechong88/patch-3

gmail_slurper.py - Handle Unicode write
Update README.md

Added more steps within S3 configuration, and created new entry on Amazon Elastic MapReduce.
Merge pull request #10 from joechong88/patch-3

Update README.md
Update ntfidf.macro

Line 1's # was rejected during execution. Changed to /* for commenting.
Merge remote-tracking branch 'origin/patch-4'

Conflicts:
	ch03/gmail/gmail_slurper.py
Update to handle Avro writing