Always popover

[bmichotte]

Relative to https://github.com/GantMan/RedAlert/pull/11

This PR force the use of popover when on iPad.

I changed the functionality with the following

If you want to present your alert in :sheet style and you are on iPad, you have to provide the :source for the popover (either a UIView or a UIBarButtonItem)

rmq.append(UIButton, :my_button).on(:tap) do |sender|
  rmq.app.alert(title: "Actions!", message: "Alert from a Popover.", 
                                   actions: [:ok, :cancel], style:sheet, source: sender)
end

You can also provide a :modal option if you want the popover to be modal. This option is only available for iOS 8+.

I have updated all tests to work on iPhone and iPad

[bmichotte]

I also corrected some tests which failed in localized iDevice

[markrickert]

Some of those corrected tests were included in my PR #13 that's already been merged. Looks like you need a rebase here before we can merge :)

[bmichotte]

I think it should be ok like this

[markrickert]

Loons good on my end. Maybe we should add an iPad spec build line to the travis file so we're getting full test coverage?

[markrickert]

Also... Wondering if we should also optionally support permittedArrowDirections for the pop over on iPad?

[GantMan]

This looks near done. I'm thinking we need mark's suggested travis ci spec change for this PR, and merge it. (Proper testing)

love the arrow_directions add!

[bmichotte]

Here are the arrow_direction option ;)

[markrickert]

Awesome! Thanks so much for this contribution!

[GantMan]

I think I'll merge this and solve the iPad tests issue in master real quick. :)

[GantMan]

Tests pass on iPad Air!

https://travis-ci.org/GantMan/RedAlert/builds/73426147

[bmichotte]

:+1: