Updated license and added clarification for the analysis.qgs file
updated processing docs
Update readme.rst
Edit network analysis section of PyQGIS cookbook

Mainly fixed up some typos and grammar issues. Also added in details about what
values should be used in the QgsLineVectorLayerDirector class. The types
of input that are expected and what integer values are used with the
defaultDirection parameter.
Merge pull request #233 from sawcordwell/fixup_netan

Edit network analysis section of PyQGIS cookbook
Merge pull request #236 from egonzale/master

Update readme.rst
updated processing modeler entry
Fix spelling errors in PyQGIS cookbook

Correct mispelled words. Also correct a few other minor typos.
Do not change between US or UK spelling variants, both of which are
used (sometimes in the same sentence).
Merge pull request #238 from sawcordwell/spelling

Fix spelling errors in PyQGIS cookbook