Fix no avatar not showing in user selection box

Closes #56268

See merge request gitlab-org/gitlab-ce!24346

(cherry picked from commit 82852058)

2265ce34 Fix no avatar not showing in user selection box

In Ruby 2.4, `URI.join("http://test//", "a").to_s` will
remove the double slash, however it's not the case in
Ruby 2.5. Using chomp should work better for the intention,
as we're not trying to allow things like ../ or / paths
resolution.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/53180

This adds a method to Gitlab::GonHelper called
`push_frontend_feature_flag`. This method can be used to easily expose
the state of a feature flag to Javascript code. For example, using this
method we may write the following controller code:

    before_action do
      push_frontend_feature_flag(:vim_bindings)
    end

    def index
      # ...
    end

    def edit
      # ...
    end

In Javascript we can then check the state of the flag as follows:

    if ( gon.features.vimBindings ) {
      // ...
    }

Fixes https://gitlab.com/gitlab-org/release/framework/issues/17

Signed-off-by: Rémy Coutable <remy@rymai.me>

Open the settings section based on the location hash

Prepares for i18n

The initializers including this were doing so at the top level, so every object
loaded after them had a `current_application_settings` method. However, if
someone had rack-attack enabled (which was loaded before these initializers), it
would try to load the API, and fail, because `Gitlab::CurrentSettings` didn't
have that method.

To fix this:

1. Don't include `Gitlab::CurrentSettings` at the top level. We do not need
   `Object.new.current_application_settings` to work.
2. Make `Gitlab::CurrentSettings` explicitly `extend self`, as we already use it
   like that in several places.
3. Change the initializers to use that new form.

Use options object to pass params for project endpoint

 - gl_emoji for falling back to image/css-sprite when the browser
   doesn't support an emoji
 - Markdown rendering (Banzai filter)
 - Autocomplete
 - Award emoji menu
    - Perceived perf
    - Immediate response because we now build client-side
 - Update `digests.json` generation in gemojione rake task to be more
   useful and  include `unicodeVersion`

MR: !9437

See issues

 - #26371
 - #27250
 - #22474

Luke Bennett authored 8 years ago and Luke "Jared" Bennett committed 8 years ago

Added raven and raven-vue plugin, updated gon_helper with data needed for raven and created raven_config, required by application.js

Added is_production to define sentry environment

Removed as much jQuery as possible

Added public_sentry_dsn application_settings helper method

Use URI module instead of regex for public dsn

Removed raven-vue and load raven on if sentry is enabled

Add load_script spec

added raven_config spec

added class_spec_helper and tests

added sentry_helper spec

added feature spec