Selections are reset after cancel in columns dialog

Fix #626 
Not sure if this is a correct way of doing it but it's working. (tested on openmrs)
Signed-off-by: Sheik Hassan <solergiga@yahoo.com>
ah ok. I wasn't sure why that delay was there. I went off the <a href="https://github.com/cbmi/cilantro/pull/363">original fix</a> where render is called explicitly in resetFacets() (though I don't see a similar function in the new column js files)