Removing legacy code
TAZ example of three layers
adding example for taz
update paths
removing legacy
Update LICENSE.txt
Merge pull request #407 from sjsrey/viz

Viz: Moving into contrib/viz in master
Commenting out tests that are blocking Travis.
Merge pull request #415 from pedrovma/spreg17

Temporarily commenting out tests that are blocking Travis.
Merge branch 'master' of github.com:pysal/pysal into ids
doctest for remapping ids
conflict resolved