Revert "Issue #2570715 by SpaghettiBolognese, awochna: Wrong behaviour if alt or title attribute contains colon"

This reverts commit ea7aa1fb.

Liam Morland authored Oct 12, 2017 and Merlin Axel Rutz committed Oct 12, 2017

Issue #1410832 by Liam Morland: "Synonymous" elements don't work according to valid_elements definition

Issue #2570715 by SpaghettiBolognese, awochna: Wrong behaviour if alt or title attribute contains colon

Issue #2914039 by btopro:  Fatal error after updating moduleIssue #2914039 by btopro, pashikk, madar:  Fatal error after updating module

Issue #1077900 by rgristroph, Johnny vd Laar, e.ruiter, axel.rutz: rel="nofollow" goes onto all relative links, allow relative links in whitelist?

Lucas Hedding authored Oct 02, 2017 and Merlin Axel Rutz committed Oct 02, 2017

Issue #2361839 by heddn, brockfanning, joelpittet: Profiling wysiwyg_filter_parse_valid_elements(), its slow and called a lot

Rob Mumford authored Feb 04, 2016 and Stefan Ruijsenaars committed Feb 04, 2016

Issue #2319949 by rlmumford, davej, specky_rum: PHP Fatal error:  Call to undefined function wysiwyg_filter_get_elements_blacklist()