if observe in bindigns defines as array of attributes, onSet can return array of values for those attributes
set attribute value null if no value for the attribute in the array, which returned the method onSet
Check val is array before attrs create in onSet
Allowing this.bindings to be a function
Fix memory leak after unstuck
Restore truthiness check to `visible`

jQuery's `toggle` function only treats the passed argument as a
visibility flag if the argument is a boolean. This commit restores
backwards compatibility by coercing the isVisible value to a boolean.
Removed space after boolean coercion
Update README.md

eventsOverride is outdated.
Merge pull request #165 from paulovieira/patch-1

Update README.md
Merge pull request #162 from trabian/fix-visibility-boolean

Restore truthiness check to `visible`
Merge pull request #161 from WouterHuysentruit/master

Fix memory leak on unstuck
add missing semicolon
fix tests: use of .once means no events left over after stickit:unstuck called
fix method binding to use correct "this"
Use Backbone.$ for better API compat, can be set anytime
test updateModel context too
fix qunit complaining about infinite stack. compare cids for view equality
"indeterminate" must be updated using .prop()
Merge pull request #171 from geta6/master

add missing semicolon
Merge pull request #175 from vkramskikh/master

"indeterminate" must be updated using .prop()