Merge branch 'release/1.5.0' into develop
document vertical
test dragging ranges past
implement swapping ranges
refactor
allow readonly to be a function
Merge pull request #53 from quarterto/feature/drag-past

Swap ranges position when dragging past another range
Merge pull request #52 from quarterto/feature/dynamic-readonly

Dynamic readonly
basic bounds impl and tests
document
more bounds tests
Merge pull request #54 from quarterto/feature/bounds

Giving certain ranges different bounds
compile
version 1.6.0
Merge branch 'release/1.6.0'