[Qgis-developer] suppress pop-up attributes patch

[Maxim Dubinin]

Hi all,

Imagine you need to digitize 1000 points without entering any attributes, just
points. If after a while pressing ok on pop-up "enter attributes"
window will drive you mad (like me), then this patch will work.

It adds a checkbox in Properties\Digitizing, that allows to switch
pop-up window on and off.

Tested on Ubuntu with shapefiles, some more testing will be helpful, will
appreciate any comments, digging in the core is new to us.
https://trac.osgeo.org/qgis/ticket/1498

Maxim