fix blocker bug https://hub.qgis.org/issues/11275
[processing] Avoid python hangs when run in headless mode from FCGI
cleanup in vector utils
start refactoring of the Processing mmqgis backend: Delete column and
Delete duplicate geometries
refactor Text to float alg
refactor Extract by attribute alg
refactor Select by attribute alg
refactor Grid algorithm
refactor Gridify alg. fix license headers
refactor Hub distance alg
refactor Hub lines alg
refactor Merge alg
refactor Geometry convert alg
remove old code
update Grid alg to avoid some coordinate precision issues
[processing] updated freq analysis alg
Merge pull request #1604 from elpaso/processing

[processing] Avoid python hangs when run in headless mode from FCGI
Merge pull request #1603 from luipir/master

[GdalTools] fix blocker bug https://hub.qgis.org/issues/11275
dxf export: (re-)enable linetype generation for pen styles
Optimize QgsVectorLayerFeatureIterator a bit

11% speedup when rendering 1 million points from memory provider