This patch allow to specify relative and home (~/) path for container
mounts.src field. In case if specified path is not absolute, it will be
created by following pattern: 'targetPath+mounts.src'; in case if path
contains ~/ - it will be properly expanded (it will allow us to mount
~/.airship working directory).
Change-Id: I878094371a2bc4e48216b1d076e466e3d29a86f6
Signed-off-by: Ruslan Aliev <raliev@mirantis.com>
Relates-To: #484
Closes: #484