ideas for enhancements

[darekzak]

I have some ideas for little enhancements which I also could try to implement.

1. trim result of Selectivity.prototype.template
   Reason:
   eg if custom dropdown template is provided and it has empty string in the begining(before root element), then it results in js error.
2. clear method with options parameter same as setData -> options.triggerChange
   Reason:
   Now if I want to clear data without calling change event, i have to do it by hand(setData). In single and multiple inputs it looks a little bit different.
   single-> setData(null) -------> at first i just did setData() which results in an error
   multiple -> setData([])
   It would be nice to have consistent api for it -> clear({triggerChange: boolean}).
   I guess that in the future it is possible that setData would pass eg undefined for clearing purpose, so I think it's not such bad idea to hide this implementation detail.

What do you think about it?

[arendjr]

Both are good suggestions, thanks! If you would like to submit PRs, I'd be happy to accept them! (After review of course :)