Added new mapchooser detection and also fixed trying to use NativeVotes on games that don't support multiple choice votes (i.e. CS:GO).
Updated Mapchooser version number.
MapChooser: Removal of g_NominateCount, which fixes nomination counts being off.
Updates to NativeVotes MapChooser.  Integrated new single-map MapChooser fixes from sourcemod-central.

Mapchooser no longer relies on g_NativeVotes global to determine if an ongoing vote is SourceMod or NativeVotes... for those rare corner cases where NativeVotes is loaded during a map vote.
Updated NativeVotes MapChooser version number.