[WIP] use bower-rails instead of rails-assets

[himdel]

This PR replaces rails-assets with bower-rails. Not meant for merging now, only to try out bower-rails, for the eventuality rails-assets dies....

The only real issue so far is that some files are no longer found at the right path and had to be fixed in application.(js|css). And bower packages not found in the registry are not "user--package", "version" but "package", "user/package#version".

And be rake bower:install is used instead of bundle install.

[miq-bot]

<pr_mergeability_checker />This pull request is not mergeable. Please rebase and repush.

[miq-bot]

<github_pr_commenter_batch />Some comments on commits https://github.com/himdel/manageiq/compare/f56175b04698386ca816bd197293b52dea21f6b8~...322a2623ea0ce3d2899e75e7ea835af3952e6988

• Gemfile changes detected. /cc @JPrause @simaishi

[miq-bot]

Checked commits https://github.com/himdel/manageiq/compare/f56175b04698386ca816bd197293b52dea21f6b8~...322a2623ea0ce3d2899e75e7ea835af3952e6988 with ruby 2.2.3, rubocop 0.34.2, and haml-lint 0.13.0
2 files checked, 1 offense detected

config/initializers/bower_rails.rb

• 🔴 Warn - Line 1, Col 26 - Lint/UnusedBlockArgument - Unused block argument - bower_rails. You can omit the argument if you don't care about it.

[miq-bot]

<pr_mergeability_checker />This pull request is not mergeable. Please rebase and repush.

[himdel]

will close in favor of #7577