Use UTC for time
Merge branch 'master' into use_utc_time

Conflicts:
	image.go
Added Fedora skeleton
Merge pull request #2858 from jamtur01/fedora

Added Fedora skeleton
Merge pull request #2810 from dotcloud/use_utc_time

Use UTC for time
Bump version file to 0.7.0
Add 0.7.0 Changelog entry, with notable high-level features since 0.6.0.