Character controller: tweak CC values

[culacant]

Observatory is a nice testbed for the character controller: we have buttons to step on, platforms that move the player around, etc.
One big issue with it: the character controller is not scaled correctly, so it cannot step up ledged where it should be able to, like the buttons on the ground floor of the observatory. While here, it should be easy to tweak movement speeds.

Desired implementation:
Fix the step-up height of the character controller so the player can climb on the observatory buttons and up the moving stairs things.
Tweak movement values to resemble Redguard

How to test:
Load Observatory world, step all over the place