* Turn some signed integers ("int" or "SDWORD") into unsigned integers where it made more sence (and signed integers caused warnings about comparing signed with unsigned integers)
* At some places cast to an unsigned integer (where the type of the expression is a signed integer but the result of it logically _always_ is an absolute value)
* Remove unused struct-type EVENT_INIT
* Convert use of malloc->memcpy->free to one single realloc call (and now make sure to actually check realloc's return value, which wasn't done with the malloc call)
git-svn-id: svn+ssh://svn.gna.org/svn/warzone/trunk@3037 4a71c877-e1ca-e34f-864e-861f7616d084