Allow + for string concat in QgsExpression
Fix python bindings for QgsRelation.fieldPairs()
new map tool to select single feature
identify shows a non-modal feature form
use a specific class for the widget (to be used as a custom widget), rename old _widget to _wrapper
select related feature on the canvas from the relation reference widget (in the attribute form)
custom widget for relation reference widget
Merge pull request #1516 from 3nids/vr_geom_relation

map identification for relations
Add a simplified class for fetching HTTP network content
[FEATURE][composer] Allow remote urls to be entered as picture path
for picture items, and automatically fetch them. Sponsored by the
City of Uster, Switzerland.
[composer] Holding alt while pressing arrow keys results in moving items 1 pixel
can create relation reference in a widget (for custom UI forms)
add new custom widgets to Qt Designer plugin
relation reference: correctly initialize and set properties for widget
make custom widget tooltips translatable
custom widget lib: include resources to show icons in designer
make some rendering errors translatable
osgeo4w: move Qt plugins (sql and designer) into qgis directory
osgeo4w: also move pyqt4 uic module for custom widgets (followup 72e779c3e)
fix windows build