Use preg_replace_callback on tags which map to tags which map to tags

Signed-off-by: Suki <suki@missallsunday.com>
Merge pull request #2586 from MissAllSunday/html_to_bbc

Use preg_replace_callback on tags which map to tags which map to tags
Merge pull request #2588 from live627/dev

! Ignore boards profile area had JS error
! Fix Gravatar issues

Signed-off-by: Michael Eshom <oldiesmann@oldiesmann.us>
! Don't allow selecting "No Avatar" if we're forcing Gravatar

Signed-off-by: Michael Eshom <oldiesmann@oldiesmann.us>
! A couple more Gravatar-related tweaks

Signed-off-by: Michael Eshom <oldiesmann@oldiesmann.us>
Merge pull request #12 from Oldiesmann/release-2.1

d