Merge pull request pysal#883 from sjsrey/rel/1.13

release 1.13.0

Merge pull request pysal#868 from sjsrey/rc1.12

Release 1.12.0

Merge pull request pysal#806 from sjsrey/rel1.11.2

Rel1.11.2

Merge pull request pysal#783 from sjsrey/release-1.11.1

Release 1.11.1

Merge pull request pysal#738 from sjsrey/dev

fixing master version

Merge pull request pysal#680 from sjsrey/rel1.10

Rel1.10

version 1.9.1 for minor bug in sdist release

Version 1.9.0

version 1.8

Version 1.7