Select Features by "Draw Multi-Point" does not draw or select

[elil]

Trying to draw and use a Multi-Point for Select Features does not work. It does not draw any points, it does not activate the "End Drawing" option, and it does not select anything.

[theduckylittle]

Found the bug, I had a typo while handling the multipoint handler. When #88 is merged this should work itself out.

[elil]

This does now work as expected for multipoint select (and thus could probably be closed). As noted in #88, there are still issues with multipoint buffer.