Merge branch 'release/v0.1.0'
Merge branch 'release/v0.1.0' into develop
Updated readme and gem homepage
Version bump
Merge branch 'release/v0.1.1'
Merge branch 'release/v0.1.1' into develop
linux compatability fixes - mkdir and require rmagick
Fixed missing tiles due to rounded down floats
Version bump
Merge branch 'release/v0.1.2'
Merge branch 'release/v0.1.3'
Merge commit '1a6f8f1' into develop
Update help text
Lib folder organisation, fix extent background color bug.
Add logger
Update gemspec file
Fix space in help message, add version command line arg.
Add licence.txt
Misc cleanup