- Pass original module name (dot=dirsep) to module via our require()
- geom.lua: fix some operations using the vector type constructor
- geom.lua: provide constructor for ivec3, useable like vec3
git-svn-id: https://svn.eduke32.com/eduke32@3894 1a8010ca-5511-0410-912e-c29ae57300e0
Also fix error handling path in our_require(), i.e. when loadstring fails.
git-svn-id: https://svn.eduke32.com/eduke32@2857 1a8010ca-5511-0410-912e-c29ae57300e0