Merge branch 'master' into debian

Conflicts:
	docs/installation.rst
Merge branch 'master' into debian

Conflicts:
	docs/installation.rst
Merge branch 'debian' of https://code.grnet.gr/git/kamaki into debian
Merge branch 'master' into debian
Merge branch 'master' into debian
New version, no ordereddict dependency
Track errors.py
Merge branch 'debian' of https://code.grnet.gr/git/kamaki into debian
Merge branch 'release-0.7' into debian

Conflicts:
	Changelog
	docs/developers/clients-api.rst
	kamaki/__init__.py
	kamaki/cli/commands/errors.py
	setup.py
Merge branch 'master' into debian

Conflicts:
	Changelog
	kamaki/__init__.py
	kamaki/cli/commands/errors.py
	setup.py
Merge branch 'master' into debian
Add the right docs
Add docs
Merge branch 'master' into debian-master
Bump version to 0.7.7-1

Signed-off-by: Stavros Sachtouris <saxtouri@admin.grnet.gr>
Bump version to 0.7.7-1

Signed-off-by: Stavros Sachtouris <saxtouri@admin.grnet.gr>
Merge branch 'master' into debian-master
Enforce dependency objpool>0.1.1
Update deprecated dependency notation
Bump version to 0.7.8-1

Signed-off-by: Stavros Sachtouris <saxtouri@admin.grnet.gr>