Moved all in-code customization of the recordsweep ui into recordsweep.py, so that we can use qt designer to customize ui_recordsweep.py without causing problems.
Slight improvements to the UI layout
added rectangle zoom in recordsweep
Improvements and bug fixes in fridge monitor - now stable and functional
Icons and better toolbar buttons for pan/zoom (but not ready for release, still needs tweaking for toolbar)
test code using sockets as a possibility to share data between fridgemonitor and recordsweep
Merge branch 'master' into michel

Conflicts:
	recordsweep/DataTakerThread.py
	recordsweep/recordsweep.py
	recordsweep/ui_recordsweep_full.py