Tagging support

[malexandre]

Based on the pull-request of @tandibar #38, I renamed the "add-new-value" to "tagging", and added the management of a function for the tagging attribute.

The tagging can be enabled by adding the attribute "tagging". If set to "true", the search term will be used as the new item. If set to a funciton, the search term will be pass in attribute to the function. For example, I use a function to build a new object from the search term that is like the other objects managed by my ui-select.

[tandibar]

Cool, thx for merging!

[steffenmllr]

+1 Any Chance of this getting merged?

[juanpujol]

+1

[brycejacobs]

+1 Any eta?

[yaru22]

+1. Any update on this?

[dainnilsson]

+1

[dimirc]

@malexandre can you rebase this?

[malexandre]

I'll do that later today or tomorrow.

[elgerlambert]

Great addition! Was about to try and realise this type of behaviour myself. Looking forward to this PR landing! +1

[brettstack]

+1

[sagar-ranglani]

+1. ETA?

[pwchan]

+1. Any ETA?

[parliament718]

I can't seem to get this working in 0.7 branch, it's too out of sync already. Can someone please merge this it's much needed feature.

[sagar-ranglani]

Yeah!!! Can we bring it to v0.8 ... as @parliament718 said, It's a much needed feature.

[tvervest]

Bad news: I really need this feature for a project I'm working on.
Good news: I'm going to make some time tomorrow to try and apply/re-create the patch on the current master.
So in other words, with a bit of luck I'll have a new pull request ready tomorrow which can be merged direct into the current master. I'll keep you guys posted!

[tvervest]

I've created pull request #260 in which I've re-applied the changes included in this pull request.

[dimirc]

Let's continue the discussion of this feature at #260