Revert "Fixed a small problem with cyclical references in hardware object xml files."

This reverts commit 64dce94cafab9dbb5bc50d287dab6d5403ef1f98.
Merge branch 'master' of git://github.com/mxcube/HardwareRepository

Conflicts:
	HardwareObjectFileParser.py
Merge branch 'master' of git://github.com/mxcube/HardwareRepository