Update Email.pm

Add suspicious and whitelist assessment types to Email feed generation.
Update Infrastructure.pm

Add warez assessment type to infrastructure feed.
Merge pull request #71 from JoaquinBerrios/patch-1

Update Email.pm
Merge pull request #72 from JoaquinBerrios/patch-2

Update Infrastructure.pm
Direct automake to use USTAR format for tar when creating dist bundles
Merge pull request #73 from akreffett/autoconf-tar-ustar

Direct automake to use USTAR format for tar when creating dist bundles
Packaging for RHEL 6