Ftools-Sum Line length - Fix progress bar
Monkey patch __nonzero__ onto QPyNullVariant for easier null check.

Who doesn't love monkeys :)
[DB Manager] fix for PostGIS Raster Layer
Merge pull request #651 from slarosa/fix_dbmanager

[DB Manager] fix for PostGIS Raster Layer
Use python None object for NULL attributes
Merge pull request #625 from vinayan/projcrash

[Fix #7964] Ftools-Sum Line length - Fix progress bar
Specifying url for QgsComposerHtml in GetPRint Request

The idea is to add the capability to specify an URL to a QgsComposerHtml
element in the GetPrint request.
This will give the ability to get PDF with content base on a web
service.
Using QUrl
Find QgsComposerHtml with QgsComposerFrame