Shift 8.0 released

CHANGES
- Note that metadata is not backward compatible with previous versions
- Added plots by tool, subnet, and batch size
- Added detection of BeeGFS file systems
- Changed plots from line to heatmap for improved scalability
- Changed processing so batches only contain single operation type
- Changed monitoring to support manager hosts across shared file system
- Changed naming of built-in tools in --stats and new --plot by tool
- Fixed detection of DMF file systems when using xdsm mount option
- Fixed detection of GPFS file systems when mmlsmgr not user-accessible
- Fixed --wait status retrieval when integrated with Mesh framework
- Fixed shift-bin striping with lustre progressive layouts when --stripe=0
- Fixed use of XS Data::MessagePack when embedded pure perl version differs
- Fixed scalability of built-in yEnc encoding/decoding
- Fixed unnecessary metadata traversal when showing detailed status
- Fixed application of lustre striping expression to directories
- Removed bbcp and gridftp support since reported fatal bugs never fixed