multiselect checkboxes not working properly

[flack]

To reproduce:

• go to http://openpsa.github.io/jsgrid/demos/kitchensink.html
• click any checkbox

Expected:

• checkbox is checked and row is selected

Actual:

• row is selected and checkbox flickers briefly and is unselected afterwards

I have bisected the issue and it seems to come from here:

https://github.com/openpsa/jsgrid/commit/89e65073a3e65798f74cf01b5e1122e9610afb2c

@bouks: Do you have a code example for the problem you were trying to fix? Because I think we will have to revert this commit and find a better solution. The current implementation also has the side effect that the handlers trigger when you right-click, which is also very annoying

[flack]

I have reverted 89e6507 as mentioned now, so the bug can no longer be reproduced with the link above. @bouks: Please check if your original issue still exists and post a new ticket for it if that's the case