"Add translation" button should be re-enabled on error when saving

[SergeyBiryukov]

If there's a network connection error when saving a translation, a red box is displayed saying "Error saving the translation!".

But the "Add translation" button is still disabled, so you can't try again without a page refresh, and you might lose the changes you've just made.

Could not reproduce on a standalone GP install, so apparently it's specific to translate.wordpress.org.

[diddledani]

Fix for WP.org's glotpress plugin "wporg-js-warnings" - incorrect usage of the ok function

[diddledani]

Explanation:

WP.org includes a function that hijacks glotpress' default click handler on the affected button and tries to pass the button as an argument to glotpress' ok javascript function in glotpress/js/editor.js which expects the button to be assigned to this instead of passed as an argument. My fix therefore uses Function.call to redefine the this value in the ok function when executed.

[ocean90]

Looks like this was fixed by [2949].