Shift 5.1 released

CHANGES
- Added --plot to visualize transfer performance when piped to gnuplot
- Added support for setting stripe size and stripe pool via --stripe
- Added code location in fish/fish-tcp invalid protocol returns
- Added colorized status using --status=color
- Added total time throttled to --stats output
- Added --no-recall to prevent automated dmget handling
- Added ability to prevent restart using no_restart file in mgr meta dir
- Added disk overrun protection when cp would exceed throttling threshold
- Added support for wildcard expansion when args piped in via stdin
- Added check of overwrite of same file at transfer initiation
- Changed rates in --stats to ignore --sync transfers to prevent skewed max
- Changed tar preallocation to allocate during first tar file operation
- Fixed mgr sync when user has many transfers/many clients in one transfer
- Fixed high estimated completion when few small files copied before large
- Fixed --status/--stats in overflow dir when no transfers in parent dir
- Fixed failed auth in remote --wait due to agent killed by child process
- Fixed error handling in remote --wait to show error output instead of ref
- Fixed collection of os type and perl version from non-origin hosts
- Fixed backout from fish-tcp when client does not have threading support
- Fixed duplication of built-in transport error messages in thread splits
- Fixed empty file name in detailed status during tar renames
- Fixed metadata recovery after host/process failures preventing retries
- Fixed cleanup of temporary files during transfer and at completion
- Fixed detailed status line wrap when one large file and some smaller files
- Fixed stall due to repeated timeout when very large dir hierarchy
- Fixed --stripe forcing nearest power of 2 instead of specified
- Fixed overspawn of dmget processes causing process failures
- Fixed incorrect dereferencing of dangling symlinks during tar creation
- Fixed status of transfers that only have errors in final tar rename
- Fixed exception when unable to open sum file
- Fixed zero-length files when copying dangling symlinks to lustre
- Fixed file system load recording for throttling during sum/cksum
- Fixed aux/mgr taint sanitization of insecure env variables on some OS's
- Fixed mgr exit delay and exit code during background sync
- Fixed tar creation when mount point name differs during parallel find
- Fixed tar corruption of dir entries with specific (rare) name format (IMPORTANT - SEE "BUGS")
- Removed deprecated options