Merge pull request #42 from asias/cow

cow
Fix features hypervisor and cloud provider list

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
copy-on-write is a feature

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
vbox: Retry connecting to serial console

It can take a while for the domain socket file to appear on the
filesystem so retry few times if connection fails.

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
Merge pull request #43 from penberg/vbox-launch

vbox: Retry connecting to serial console
README: Add description on how to update capstan to the latest version
Merge pull request #44 from tgrabiec/fixes

README: Add description on how to update capstan to the latest version
VBox usage instructions

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
Platform specific default hypervisors

Use platform specific hypervisors:

 * QEMU/KVM on Linux
 * VirtualBox on OS X and Windows

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
Merge pull request #46 from penberg/default-hypervisor

Platform specific default hypervisors
Initial VMW support