#69 Practise values 127 instead of 200

[AlanMcL]

I noticed that skills require 100 practice at lvl. 0 - 9, then 127 at lvl. 10 -19. This seems to be reasonable so far for spells, but it may not reasonable for combat skills, as there can be 6+ increases in one round of combat and only 1 increase per round of combat for magic skills. This, of course, doesn't include spells cast outside of combat. My magic skills are leveling at a reasonable rate with the current system.