Disruption Shield now displays the current absorbed value

(not complete yet)

added soem code to handle friends, not complete

Added a Tiles.sharp_scaling parameter; if set to true the entities textures will not be interpoled by OpenGL

Big movement speed effects like lightning speed, movement infusion, .. now display a fractional effect to see how close to end they are

Set definitions set_list, on_set_complete, and on_set_broken can now be tables of several different actions to take for different set ids
Made set_list able to be a function
Sets can now check against a specific inventory slot

to be much tested, most work by housepet

Savefiles from 1.1.5 are not compatible, added a message to display this with a link to download 1.1.5