storage metrics widget
Storage metrics
changes
Add links from disks to pools
pool offset
Usage metrics
Render text
Add legend for disks
Change text size and legend border
text spacing
storage metrics widget
Merge branch 'master' into issue#429_appliance_metrics

Conflicts:
	src/rockstor/storageadmin/static/storageadmin/js/templates/dashboard/widgets/storage_metrics.jst
	src/rockstor/storageadmin/static/storageadmin/js/views/dashboard/storage_metrics.js
storage metrics widget
Merge branch 'master' of github.com:sujeetsr/rockstor-core
Merge branch 'master' into issue#429_appliance_metrics
display usage
Add legend
Add legend left margin
Split legend into multiple columns
display % only for used stuff