Register angular module on plugin load

[Sija]

With this change we're able to reference ngRaven module even before Raven.install() call.

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This change is

[benvinegar]

One goal I know @mattrobenolt had with Raven.addPlugin was to allow it so that you could load Raven + plugins before libraries like Angular. Unless I'm missing something, with this change, that won't be possible.

But it seems that this patch would be necessary for #414 – i.e. the pain about gaining access to Raven in the Angular ecosystem before install is called is real.

@mattrobenolt – thoughts? Maybe we have to rethink install/addPlugin?

[benvinegar]

@Sija – if you can rebase this / resolve conflicts, I'm fine with merging.

[jonlil]

What can I do to help? Need this asap!

[vivoplus]

Reviewed 1 of 1 files at r1.
Review status: all files reviewed at latest revision, all discussions resolved, some commit checks failed.

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Comments from Reviewable

[kamilogorek]

Please refer to #821 (comment)