Merge branch 'master' into devel
Tweaked tests for newer Test::More
Fixed license in Makefile.PL to make CPANTS happy
Enabled Travis-CI testing of Perl 5.20
Cleaned up roles
Test::Warnings only used for author tests
Fixed prereqs in Makefile.PL
QA tests enabled for author testing
Updated TODO comment [ci skip]
POD tweaks [ci skip]
Added US spellings as alternative method names

Fixes #1
Tighted type restrictions
Updated POD [ci skip]
Updated comment [ci skip]
Prototype tile splitting for large images
Skip tmp dir [ci skip]
Fix for image splitting
Tweaks for max breadth
Updated Changes [ci skip]
Added stub test for malloc issue