Added get functions for neutron essences
Added upload functions, changed upload logic with resource hash
get and upload funcs of sec_groups and sec_groups_rules
Neutron unittests and fix bugs for neutron resource
Changed read_info
Added identity_resource, added additional str check to get_resource_hash, fixed tests
pep8, added meta to resources info
Merge pull request #19 from toha10/neutron_resource

Neutron resource
Fix g2g action

- Add default behaviour in case of no specified images in opts
- Add return of the new image structure in g2g action
Merge pull request #20 from miarmak/g2g_action_fix

Fix g2g action
Add some consts
Merge pull request #21 from mirrorcoder/master

Add some consts
Add unittests for image resource and actions

 - Extend glance_image resource's unittests
 - Add unittests for get_info_images action
 - Add unittests for copy_g2g action
 - Fix converters unittests (import fail, pep8)
Merge pull request #23 from miarmak/image_unittests

Add unittests for image resource and actions
Add QemuImg Utils
Add RbdUtils
Refactoring utils
Merge pull request #24 from mirrorcoder/master

Add QemuImg Utils
Fix bugs
Merge pull request #25 from mirrorcoder/master

Fix bugs