shape.text has no effect on labels

[sgillies@…]

Although our shapeObjs have a 'text' member and we can set this member through
mapscript, msShapeGetAnnotation() does not check this value for use as a 
feature label.

[sgillies@…]

setting target.  i'll pick this one up if you are busy.

[sdlime]

I didn't add the msShapeGetAnnotation function so I'm not sure what's going on.
This is probably not a result of any updates, just something that was missed. Go
ahead if you like. I'm curious though and would like to see what you have to fix.

Steve

[sdlime]

Hmmm... The text property was always meant to be set and used with the shape
draw method. Only the layer drawing methods call that annotation function. How
is this being used in MapScript?

Steve

[sgillies@…]

Only change I made to msShapeGetAnnotation is to protect against trying get
a value when shape->values is NULL.  One less possible segfault.

Implemented a setValue() method for mapscript and 4 default values for newly
created shapeObjs through mapscript.  This allows us to pop values into a 
shape that can be used for labeling.