Added load support for lblev=9999 mapping
Removed ambiguity around points/bounds dimensionality
BUG: Removed cause for increased interpolation error.

Applicable to modifying the range of supplied points so that they are
wrapped to the source points range.  Resulted in values to be
interpolated over being slightly different.  This difference becomes
amplified when interpolating values which are then different on a high
gradient.
Review actions taken
Merge pull request #1093 from cpelley/interp_refactor_anotherway

BUG: Removed cause for increased interpolation error.
Update gitignore file to ignore example test results.
Clarified user guide on loading Brewer palettes. Closes #1092.
Merge pull request #1096 from ajdawson/brewer-docs

Clarified user guide on loading Brewer palettes.
Merge pull request #1095 from ajdawson/image-output-gitignore

Update gitignore file to ignore example test results.
Review actions
Merge pull request #1067 from esc24/lblev_9999

Support for LBLEV of 9999
Fixed use of undefined exception
Merge pull request #1100 from esc24/commanderrfix

Fixed use of undefined exception
BUG: Changed precision when wrapping points.
MAINT: Reverting dtype change in interpolator