Explicitly set show-menubar so our menubars are shown
Testing Done:
Ran and verified the menus are displayed. Shortcut keys aren't working either so that might be part of the issue why they're not showing up with the ui file being set?
Reviewed at https://reviews.imfreedom.org/r/1635/
# 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: