Fix issue with angularjs 1.8.x

[raziel057]

The component doesn't works with AngularJs > 1.5.x:

The $http legacy promise methods success and error have been deprecated in 1.5.x and is removed in v1.6.0.
So we got the following error: TypeError: $http.get(...).success is not a function

See : https://code.angularjs.org/1.5.11/docs/api/ng/service/$http#get

As suggested we need to use the standard then method instead.

[raziel057]

Hi there,

I'm a bit confused that this PR is not yet accepted knowing that the component relay on angularJs 1.8 by default since commit ed737c5

So currently it lead to JS errors related to translation.js when using angularJs > 1.6.0.

For the context:

Would it be possible to merge it in master and 6.0 branch?

[bartmcleod]

@raziel057 I simply didn't have time, it looks perfectly allright to me, there are conflicts though, is it possible this was already fixed when I did some frontend fixes for SF 7? Can you maybe solve the conflicts? And feel free to make a PR to the 6.0 branch as well.