Enable community-translator

[yoavf]

The community translator is a tool that enables front-end translations of strings for projects that use GlotPress to store their translations. It consists of a few parts:

1. A front end script that highlights translatable strings, provides the UI to translate them, and submits the translations
2. A backend plugin that prepares translation data for the script (based on gettext filters, for example)
3. A GlotPress plugin to extend the api (gihub link coming soon)

Enabling it on WordPress.org would allow front end translations of rosetta, the plugin directory, the theme directory, etc.
Demo: ​https://cloudup.com/iU6acgS9-x1

Patches:

• translate-api-plugin.diff​ contains the GlotPress plugin
• translator.diff​ contains the translation backend plugin, and the front end script which is a minified build from ​https://github.com/Automattic/community-translator/
• jumpstart-plugins.diff​ is the code to load the translator in the plugin directory
• jumpstart-rosetta-themes​ is the code to load the translator in rosetta sites and the plugin directory

TODOs:

• Do we want this to load for all users? Only previously active translators? something else?
• Fix URLs in the translator plugin for wporg cdn
• Design adjustments

props akirk hew julesaus

[akirk]

This fixes a bug where the ngettext filter was not installed properly.

[dd32]

Milestone renamed

[dd32]

Milestone renamed