Update the unity plugin for the PurpleConversationManager API
Testing Done:
Compiled and tested it under Unity. Didn't notice much as configuration is broken and Unity did not like the graphics of my vm and kept not repainting the screen.
Reviewed at https://reviews.imfreedom.org/r/857/
# 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: