[dw-free] Spellcheck causes segfaults when used within a controller

[fu]

[commit: http://hg.dwscoalition.org/dw-free/rev/e6e054bc4933]

http://bugs.dwscoalition.org/show_bug.cgi?id=3947

Go back to an older approach (using IPC::Open2) to avoid the segfaults, but
do this in a gearman worker instead of in web context, to avoid issues with
IPC::Open2 not working with mod_perl2 (Bug 307).

Tweak the styling while I'm in here: stop using font, allow us to pass in a
class instead of a color (for site-skin compatibility), stop using BML
templates (for controller compatibility). Clicking on the misspelled word in
the entry will take you to the suggestion, and vice versa.

Patch by fu.

Files modified:

• bin/upgrading/en.dat
• bin/worker/spellcheck-gm
• cgi-bin/LJ/SpellCheck.pm

( Diff: 3 files changed. )