tfg: Renamed HardwareTriggeredScaler to TFGTriggeredScaler as it is tfg
specific. Also manually merged in changes from 8.22 svn. Restructured
code and commented.
Merge branch 'master' of
ssh://dascgitolite@dasc-git.diamond.ac.uk/gda/gda-core.git

Conflicts:
	uk.ac.gda.core/src/gda/device/detector/countertimer/TFGTriggeredScaler.java