[PATCH] elliptic animal footprints

[Palaxin]

Nearly all animals currently have circle footprints which do not represent their bodyshape nicely. Attached is a patch which is aimed to make the footprints fit better to their objects and to enhance consistency. Have a look at the screenshot for illustration. The changes are:

• all land animals: length/width = 2
• sharks and whales: length/width = 4 (same as triremes)
• fish footprint radius halved (fits the swarm size now)
• line thickness has been adjusted for fish, shark, rhino, giraffe, walrus, camel and crocodile
• deleted a commented out section from the peacock template which has been existing since he has been introduced into the game 4 years ago at r11254
• whitespace fixes

This is the first patch of #3778, which will be split into several parts.

[Palaxin]

questions

• Is the huge size of the fish footprint intended to better support multiple gatherers?
• Is the height value of the footprints currently of any use? If not, are there any plans?