otherwise the optimizer doesn't include it

With jquery  > 1.8.3, $(window).trigger('focus') doesn't trigger the handler.
Manually focusing the window does however trigger the handler.

- it calls 'bower update' and then 'make normal' inside the strophe dir.

This should make it easier to create custom builds, e.g. with more or less
dependencies.

- Also added bower.json with all 3rd party dependencies specified
- And .bowerrc to specify components dir

I added them for someone who promised hu translations, but they are now just
taking up space.

- Removed phantom-jasmine, not used.
- Updated CONTRIBUTING.rst

Adding pt_BR translations

Removing spinner after login attempt