[Bender] Update benderjs-ckeditor plugin to support Bender 0.2.3

[g.pabian]

Bender 0.2.3 introduces a fix in the test directive parsing mechanism that makes the current version of the plugin crash while trying to convert coma-separated lists of plugins to arrays.

The current plugin depends on a "buggy" output of test directive parser. For example, such directives:

/* bender-ckeditor-plugins: foo, bar */
/* bender-ckeditor-remove-plugins: baz, qux, quux */

should be converted to the following object:

{
    ckeditor: {
        plugins: 'foo, bar',
        remove: {
            plugins: 'baz, qux, quux'
        }
    }
}

while in Bender 0.2.2 they produce this:

{
    ckeditor: {
        plugins: 'foo, bar',
        'remove-plugins': 'foo, bar, baz'
    }
}

which doesn't really make any sense.

[g.pabian]

I created a fix for this issue - I simply added support for Bender >= 0.2.3 directives while keeping backwards compatibility with the output produced by older versions of Bender.

Ticket branch: ​t/13103

[Piotrek Koszuliński]

Merged to master with ​git:56ad8fc.