Sped-up repeated documentation building.
Review action.
Added a version switcher on the documentation.
Merge pull request #242 from pelson/doc_build_speedup

Sped-up repeated documentation building.
Changed the shapefile used in the hurricane example so that the great lakes are not included in the states.
Updated version switcher to point to scitools domain.
Merge pull request #247 from pelson/hurricane_with_lakes

Exclude great lakes in hurricane example
Commented on the use of the *latest* version switcher, rather than the local one.
Merge pull request #244 from pelson/version_switcher

Added a version switcher on the documentation.
Merge remote branch 'upstream/v0.6.x' into HEAD

* upstream/v0.6.x:
  Commented on the use of the *latest* version switcher, rather than the local one.
  Updated version switcher to point to scitools domain.
  Changed the shapefile used in the hurricane example so that the great lakes are not included in the states.
  Added a version switcher on the documentation.
  Review action.
  Sped-up repeated documentation building.