Merge pull request #134 from skizhak/master

Bug fixes and enhancements
1. changed the storage-summary job url to storage-topology-summary
2. removed the building osd/host tree background jobs and its respective methods
3. instead use the already existing storage-toplogy-summary cache data.
4. some minor clean up
Merge pull request #135 from surakula/master

refactor/recalculating Disks-host tree objects
Add .gitreview for CI
Fix for PR #1398262 - when the node data points has huge difference in avg_bw some of the nodes are not getting displayed in scatter chart
1. converted all the parsed data values to bytes and used FormatByteAxis to autoscale to the right unit.
2. fixed all the scatter charts to reflect the dynamic Y axis unit
3. added destroy funtion for the infra storageNodes class for cleanup