Scrolling Combat Text

On screen animated display of the dealt/received damage to/from creatures.
(Probably best known from various MMO's)

Features:
Damage is shown as HP bar that floats in the direction you hit/got hit from. Visible for 8 ticks.
Seperate colors for HP bar and description text.
Show the HP of a creature after it's hit. (Uses the monster verion of get_HP_Bar = not 100% accurate)
Damaged cloths/equipment will float north. (eg. shirt (fits) - ripped)
Some status effects will float south. (eg. Bite wound - left arm)

![sct](https://cloud.githubusercontent.com/assets/3514404/3039824/2981109a-e0e4-11e3-8512-f581dfdcb17e.png)
This image just shows all the possible strings that can get displayed. It looks way better in motion!

Tilesets have to have ASCII sets defined for this to work, for now only in RetroDays.

PS: Fixed some things with the hit and weather animation code as well.