update doc version to 0.9 dev

Add dev doc switcher

d3viz: fix escaping of dot graph

Fix nanguardmode with slices

Scan reintroduced

Don't use march flags in cutils to help don't have the architecture m…

Fix for #4514

Support -std=c++11 as flag to nvcc

Corrected contradictions in sparse doc

d3viz improvements for Python 3

conda provides pydot-ng neither for 2.6 nor for 3.3

adding variable name in error messages raised by calling a function

Fix a test regression when we moved the new back-end

Gpu opt

Version switcher construction in ajax to avoid setting html before version info is obtained from server

Fix copy-paste error in docs.