"popoverTemplate" and "popoverTemplatePopup" directives

[jbruni]

Addresses feature request "support template url for partial" #220

Improved over @joshdmiller PR #369

Resolves properly the ng-model binding issue seen at http://plnkr.co/edit/cbqOnktHhxSjeLIBE1w7?p=preview

[jbruni]

With this single and simple line, we are able to provide the "compile scope" to the "popup" directive.

[jbruni]

This is similar to jQuery's "detach" - which is what we need here instead of "remove", so we don't break the ng-model bindings.

[jbruni]

• There is a difference between "detach" and "remove".
• jqLite does not have "detach", only "remove".
• This forEach loop above emulates the detach behaviour.
• Sometimes we need to call remove - it is when the scope is destroyed (see fix(tooltip): make sure tooltip scope is evicted from cache. #486).
• But by calling "remove" and clearing all data and bindings from the compiled DOM - only to hide the tooltip, without effectively needing to do it - we had the ng-model binding issue.
• Now, we selectively call "remove" or the "detach" equivalent. The "remove" function is effectively called only when needed (i.e., when the scope is actually being destroyed).

[jbruni]

Developers at #220 have tested the directive - we've found:

• it required jQuery
• it required AngularJS 1.2
• it required templates declared within script tags

All these deficiencies were treated, resulting in a much more mature implementation.

As it is, I think it may be good to merge now.

Of course, if major/deep changes in popover/tooltip are on the horizon, this PR is past its time. Otherwise, if a major refactor is for a future milestone, I don't see why not include this expected feature as it is asap.

@joshdmiller - can you review it? It is based in your PR #369

Thank you.

[jbruni]

Need to update this PR... better yet, just close this one and open another... it became obsolete with the launch of 0.7.0... everyday someone else appears at #220 wanting the feature to be official... I must ask:

• Is there a complete refactoring of tooltip / popover happening in the short-term?

If yes then I understand this effort is merely a temporary workaround.

If not then why not merge it? (Considering a "new PR" for 0.7.0)

Hmmm... now I see that what I am really asking is if it worths the effort to create a new PR for 0.7.0 - it certainly will be cleaner than this one, since the solution is mature now (i.e., this PR has a history of commits, while the new one should contain a single commit).

Thanks.

[jbruni]

Closing this PR because I've just opened a new updated one: #1391 - based on new Angular UI Bootstrap version 0.7.0