LevelProp fixes, spell net ID, autoattack change

Assigned a net ID to spells, changed autoattack melee packet (it isn't
actually melee, more like a continuation of an attack), found a new
debug packet and fixed a typo. The shop shows properly now, although it
still isn't clickable from the summoner platform. Would be great if
someone could figure that out.
Fixed autoattack for 4.17, shop is now clickable!

Updated version string to 4.17, older clients might break due to the new
autoattack packet. And the shop is now clickable! (this took really
really long to find out)
Merge pull request #89 from dotdeath/master

LevelProp fixes, spell net ID, autoattack change