Pending Code Change: Update to ride code

[Morgenes]

Based on recent feedback, we've fleshed out the ride skill so that some extra variables are taken into account when determining if your mount will move.

The number of hands free, the speed & type of mount, as well as the terrain you are riding through will all influence the skill.

This will actually result in two outcomes.  Some situations will be much easier, allowing newbie riders a very fair shake and moving without hindrance.  Some situations have become much harder, so be warned, you who haven't failed a ride check since Day 0, if you try some funky stuff, you might see some fails again.

This code will go live with the next reboot.  Helpfiles will be updated to reflect this once the code has gone live.