Testing Done:
Opened the dialog, clicked the various options.
There is currently a warning about `markdown_link_target`, but that seems to be a bug in Talkatu (and the links all mush together, which I think is the same problem.) Also, strangely, the dialog sometimes opens exactly as wide as the bottom button box, but sometimes it opens a little bit wider (not sure if it's also Talkatu wrapping causing minor size request changes, or something else).
Reviewed at https://reviews.imfreedom.org/r/1649/
# UPDATING VERSION NUMBERS FOR RELEASES
#
# The version number is:
# <major>.<minor>.<micro><extra>
#
# micro += 1
#
# If any functions have been added to libpurple, Pidgin, or Finch:
# micro = 0
# minor += 1
#
# If backwards compatibility has been broken in libpurple, Pidgin, or Finch:
# micro = 0
# minor = 0
# major += 1
# purple_soversion += 1
#
# extra should be similar to one of the following: