Update the re.search to use string

Update the re.search function in line 19 to use a str(s['from
') and str(s['to']). This handles an error when the To has no emails addresses.
Create requirements.txt

This file is needed to allow flask and other dependent objects to be "grabbed" for compilation in dot cloud.
Merge pull request #4 from joechong88/patch-2

Create requirements.txt
Merge pull request #3 from joechong88/patch-1

Update the re.search to use string
Update README.md

Setting up Amazon S3
Merge remote-tracking branch 'origin/patch-1'