treat request.headers as a more general list of dicts
Security Groups: Fix for filtering support.
VPC: Added default security group upon creation.
Cleanup: Removed duplicate import.
Tests: Fixed 'requires_boto_gte' to apply to target test only.
Tests: Tweaked a general test to be compatible with Boto 2.7, attribute check is redundant with a specific version-gated test.
Tests: Tweaked two tests to be compatible with Boto 2.7, now-removed kwarg has its own version-gated test.
Tests: Tweaked two tests to be version-gated to Boto 2.8+.
Merge pull request #193 from kouk/master

Fix for S3 metadata on moto_server
Merge pull request #202 from DreadPirateShawn/TestsFixSkipDecorator

Tests: Fixed 'requires_boto_gte' to apply to target test only.
Merge pull request #200 from DreadPirateShawn/CleanupDuplicateImport

Cleanup: Removed duplicate import.
Merge pull request #196 from DreadPirateShawn/SecurityGroupsFilteringFix

Security Groups: Fix for filtering support.
Merge pull request #198 from DreadPirateShawn/VPCDefaultSecurityGroup

VPC: Added default security group upon creation.