Moving cloud image creation script to gns3-server project.
Adding GNS3-server code source info to default image name.

Fixing spacing, etc before pull request.
Adding readme.txt
Switching script creation method to use string.Template
Improving readability.
Moving cloud image creation script to gns3-server project.
Adding GNS3-server code source info to default image name.

Fixing spacing, etc before pull request.
Adding readme.txt
Switching script creation method to use string.Template
Improving readability.
Syntax cleanup
Merge remote-tracking branch 'origin/gns-80-cloud-image' into dev

Conflicts:
	cloud-image/create_image.py
Merge branch 'master' into dev
Merge pull request #21 from planctechnologies/master

Create cloud server images