Follow-up to #2243413.

Rolando Payán Mosqueda authored Oct 25, 2015 and Henrik Danielsson committed Oct 25, 2015

- #923460 by TwoD, ph0enix, jonhattan, rpayanm: Fixed jWYSIWYG website and release package structure.

- #2493443 by TwoD: Added a method of filtering the ajax_html_ids to avoid too many parameters in the request.

Cleans up mistake from #2018439.

They methods are now safe to call repeatedly and will always produce the same
result. The value of #resizable is no longer overridden by Wysiwyg.

The current document should still be used as the context for fetching
a field by id, to ensure the parent form is still part of it.

Fixes regression introduced by #2284955.

- #507696 by hadsie, kndr, ksenzee, mcarbone, gaele, et al: Automatically adjust initial editor height.