dbmanager: rotating layer import and export icons to more intuitive sense
advanced digitizing tools
this integrates advanced digitizing tools aka CAD tools in QGIS application and basically a port of CADinput plugin
* new class QgsMapToolAdvancedDigitizing shall be subsclassed if adv. digit. tools could be used in a map tool
* QgsAdvancedDigitizingDockWidget handles the interaction with the user and also perform the constraints (filters events)
* QgsAdvancedDigitizingCanvasItem paints construction lines on the canvas
[processing] [feature] split lines with lines
Update Grass7Algorithm.py

GRASS GIS 7 update: dsn -> input|output as per http://trac.osgeo.org/grass/browser/grass/trunk/lib/gis/renamed_options
[expressions] Make int/int return double results.

Also add a new "//" operator to perform integer division.
(fix #5153)
Merge pull request #1720 from neteler/patch-6

[processing] Update Grass7Algorithm.py
[processing] load documentation from online QGIS User Guide
remove debug code
Add support for map rotation (hub #9330)

Includes widget to show and set map rotation.
Handle rotation in vector and raster renderers.
Ensure correct behavior of panning and zooming actions.

Drop compile-time defines for ARM and ANDROID, leaving only
the qreal based function to transform in place.

Update expected test results after eye comparison.
[gui] Fix fieldcalculator layout
[gui] Fix qgsexpressionbuilder layout
Log error to ProcessingLog
Merge pull request #1719 from bstroebl/splitLines

[processing] [feature] split lines with lines
dxf export:
* export layers in reversed rendering order
* use checkboxes for layer selection
* support for layers selection by visibility preset
* improve selection of layer attribute
* show busy cursor while exporting
* fix duplicate end of entities section
indentation update
Merge pull request #1721 from nyalldawson/integer_divide

[expressions] Make int/int return double results
Merge pull request #1517 from imincik/dbmanager_icons

dbmanager: rotating layer import and export icons to more intuitive sense
Ensure all items are deleted from TestQgsComposerTableV2
Add note about QgsMapCanvas::rotation() being added in 2.8
Make toCanvasCoordinate(QRect) method private in QgsMapCanvasItem

I added this for rotation support but the interface is probably not
something any external code should rely upon.