Don’t use repository names as id’s.

Don’t use repository names as id’s.
https://bugs.webkit.org/show_bug.cgi?id=141226

Reviewed by Chris Dumez.

Not using repository names as their id's reduces the need to fetch the entire repositories table.
Since names of repositories are available in manifest.json, we can resolve their names in the front end.

* Websites/perf.webkit.org/public/api/runs.php:
(parse_revisions_array): No longer uses $repository_id_to_name.
(main): No longer populates $repository_id_to_name.

* Websites/perf.webkit.org/public/api/triggerables.php:
(main): Don't resolve repository names.

* Websites/perf.webkit.org/public/include/manifest.php:
(ManifestGenerator::repositories): Use repositories ids as keys in the result and include their names.
(ManifestGenerator::bug_trackers): Don't resolve repository names.

* Websites/perf.webkit.org/public/js/helper-classes.js:
(TestBuild): Renamed repositoryName to repositoryId.
(TestBuild.revision): Ditto.
(TestBuild.formattedRevisions): Ditto. Continue to use the repository name in the formatted result
since this is the text shown to human.

* Websites/perf.webkit.org/public/v2/app.js:
(App.pane.searchCommit): Renamed repositoryName to repositoryId.
(App.PaneController._updateDetails): Ditto.
(App.AnalysisTaskController.updateRoots): Ditto.

* Websites/perf.webkit.org/public/v2/data.js:
(Measurement): Ditto.
(Measurement.prototype.commitTimeForRepository): Ditto.
(Measurement.prototype.formattedRevisions): Ditto.

* Websites/perf.webkit.org/public/v2/index.html: Use the repository name and the repository id as
select element's label and value respectively.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@179591 268f45cc-cd09-0410-ab3c-d52691b4dbfc