1.62-1

	- [BUG] 'crush -point' had a bug suggesting wrong FAZO offsets. Yet 
	another bug left over from the projection update...

	- [CHANGE] 'Jy/beam' is now the default output. However, beware that
	this is uncalibrated until you reduce with a proper tau value and
	apply any residual calibration scalings via -scale=X...
	
	- [CHANGE] Default projection is changed to 'GLS' mainly because it
	is the fastest to calculate and is widely supported. You can always
	change the map projection with the '-projection=<name>' option. See
	'change.log' for 1.60-1 for the list of other projections currently
	supported...

	- [NEW] Added support for polygonal regions. These can be drawn on the 
	'show' display by pressing 'p' to start and again to complete a 
	polygonal region.
	Add vertexes with the left mouse button, or remove them one by one 
	with the right mouse button. Alternatively, vertexes can be listed
	as coordinates (equatorial or horizontal depending on the map 
	orientation) in a file.
	Pressing 'P' can be used to flush all polygons. 
	
	- [NEW] 'show' can now measure the rms values inside regions (circular
	or polygon) by pressing 'N'.

	- [NEW] More control offered over MEM mapping. The configuration key
	MEM_POSITIVITY and equivalent option '-positivity=<name>' can be used
	to specify what method is used to ensure positivity, which is required
	for the MEM method to work. The following values are supported:

		clip		Set all negative fluxes to 0.
		absolute	Use absolute values of fluxes.
		squares 	Use the sqaures of the flux values.

	The default is 'absolute' (see crush.cfg).

	- [FIX] 'crush -point' display was not autoscaled due to some recent
	changes.

	- [CLEANUP] Removed some unused old code (Should have no effect).

