Merge pull request #71 from planctechnologies/master

Instance inspector improvements
Fixes pretty logging error if the settings directory doesn't exist.
Do not use relative paths for configs.
Fixes empty cloud provider in settings (temporary fix).
Bump version to 1.0a7.
Hide cloud stuff for the alpha7 release.
Do not load cloud settings for the alpha7 release.
Fixes issue with relative image paths.
Node labels must be selectable.
added gui components for selecting image templates
stop mocking
retrieve and store tenantId for rackspace users
added settings to hold default image
load/store default image value from settings
fixed tests after removing mocks
Bump to version 1.0a8.dev1 and reactivate cloud features.
Fixes error when connecting an IOU device to a cloud.
Fixes size restoration issues for rectangles and ellipses when loading a project.
New feature: insert image on the view.
Add some tooltips in preference and configuration pages.
Fixes #72.