fix a relevant warning I caused by accident

fixing the remaining PChar issues pas2c ran into to this point, now it stops because of being unable to deal with "set of char"

yo dawg, I herd you like PChar...

remove obsolete type conversions that messed with pas2c

fix some string related pas2c issues

use uConsts rather than including config.inc more than once

add travis dependencies

fix for issue #777 (IceGun: Segfault when freezing water, with rqBlurryLand enabled)

- Cut actions array instead of performing full copy, when it is possible - Fix use of uninitialized attack parameters struct (existed for years, and could maybe explain some weird ai behavior)

Tiny optimization