fix for #83: dynamic sizing
Prevent slide range overrun by checking the slide boundary.
Merge pull request #87 from gaku/master

fix #85: Prevent slide range overrun by checking the slide boundary.
Merge pull request #86 from jptredoux/master

fix for #83: dynamic sizing
chore: todo update
fix: fix initial positionning when index>0
docs: add some more demos
chore: bump version