l10n_client 7.x-1.3

Changes since 7.x-1.2:

• #992260 by miro_dietiker: Added Deactivate l10n_client() in certain paths. Admin form moved to Configuration » Regional and language » Translate interface » Client
• #1959098 by sammuell: Display a throbber (activity icon) to indicate async saving action.
• Fix filtering not reshowing elements when hitting backspace
• #872022 by Gábor Hojtsy: Highlight the target server for contributions.
• #1720118 by SebCorbin, philipz: Hide the blue bar when translation client form is hidden.
• #942240 by droplet: Page text don't show under D7 overlay.
• #2045609 by s_leu: Add test for translation submission.
• #1277752 by interX: Implement hook_field_extra_fields().
• #2060181 by Pasqualle: Added html body class when localization client is active.
• #2025013 by lsolesen, killua99: Added configure link to the modules page.
• #862590 by seutje, droplet, Gábor Hojtsy: Cleanup and optimization on l10n_client().js.
• #1929208 by hkirsman: Fixed broken html.
• #1931790 by wangqizhong | DYdave: Move admin config form page to admin.inc file.