XRF scan added to queue
EMBL solution to mini diff and centring math
New progressbar and elapsed time brick.New XRFScanPar..Brick
Centring math xml
Modification to several HO and Brick
Merge commit '99a9'
remove print statements
added back code for CATS
added 'set_archive_path' static method to PathTemplate object,
to have a more configurable 'get_archive_directory'.
The Session hardware object takes care of setting it from session.xml
Merge commit '52dd'
Merge commit '5e1e'
Merge commit '6211'
Merge commit 'b4cc'

Conflicts:
	HardwareObjects/ShapeHistory.py
put 'SC-details' as label instead of 'SC-det'