categorized render: support disabling rendering of some categories
Merge remote-tracking branch 'upstream/master'
[pyqgis cookbook] update formatting and fix warnings
User Manual Screenshots working vector - supported data
User Manual screenshot working vector - virtual field
Merge pull request #276 from SrNetoChan/screenshot

User manual screenshot
fix more warnings
Fix #267
Fix #267 and fix #277
Fix #267 and fix #277
Merge pull request #274 from diethard2/master

Added Sample Session to Composer document
fixed missing geometry icon
Multi-threaded rendering & add option to set max thread count
Merge remote-tracking branch 'upstream/master'
Merge pull request #279 from ghtmtt/patch-3

fixed missing geometry icon
Copy, paste and drag and drop colours (also works with some other applications, eg dropping colors from GIMP or Gpick)
Merge remote-tracking branch 'upstream/master'
little styling fix
Merge branch 'master' of github.com:qgis/QGIS-Documentation
Voting for plugins from Plugin Manager and more description