Add documentation for known configuration options for boto (re #1100)
Remove trailing spaces from image module
Update ec2 with new operations
Merge branch 'ec2-updates' into develop

* ec2-updates:
  Update ec2 with new operations
  Remove trailing spaces from image module
Add modify_vpc_attribute method.
Fix a gs versioning test failure.
Merge pull request #1391 from reinhillmann/gstestfix

Fix a gs versioning test failure.
Merge pull request #1376 from pasc/1100_boto_config_docs

Add documentation for known configuration options for boto (re #1100)
Upgrade version of nose used.
Bubbling up md5 and upload_id for use in manifests.
Merge pull request #1394 from reinhillmann/manifestfixes

Bubbling up md5 and upload_id for use in manifests.
Fixed a not defined bug with resumable upload handler.
Merge pull request #1395 from reinhillmann/bugfix

Fixed a "not defined" bug with resumable upload handler.
try RFC1123
Update __init__.py
Log the S3 signature for debugging purposes.
no version change
Merge pull request #1397 from fivethreeo/develop

Amazon S3 date format
Change default gs.acl.Acl entry list to be an actual Entries object.
Merge pull request #1408 from jterrace/fix-acl-init

Change default gs.acl.Acl entry list to be an actual Entries object.