Feature: inline html templates on build

[Manduro]

Using this or similar: https://github.com/ludohenin/gulp-inline-ng2-template

This speeds up the app by eliminating http requests for templates.

[mhartington]

If you want to put together a PR to the task, we'd love to have it. Overall, we're looking into Angular's own offline template compiler, which will instead create a sort of "jsx-like" code instead of actual templates.

[Yimiprod]

There's a pull request by @michaelknoch => #35
I was about to make a pull request doing exactly the same thing.
I'd love to see it merged <3.

[materazu]

What about this fix ?
Ios have several issue due to template c.f. https://forum.ionicframework.com/t/app-slow-on-ios/55117/46