for count on scan
Correct a table name in the synopis
Note that the host parameter sets the region

This is my first time using AWS and I thought that the tables would be replicated across regions. I added a note to emphasize that that is not true.
Merge branch 'master' of git://github.com/ukautz/Net-Amazon-DynamoDB
doc link and typo fix
Merge pull request #17 from briandfoy/master

Emphasize that 'host' sets the region
Merge pull request #16 from briandfoy/patch-1

Correct a table name in the synopsis
Merge pull request #13 from fayland/master

for count