remove tabs and unify indenting to the same depth in spaces for the entire xs file
changed allocation of scores array from stack variable to dynamic

Declaring scores as scores[ax+2][ay+2] causes stack space to be consumed,
which can lead to stack overflows with big sizes of scores. Allocating the
space with malloc and friends leaves the stack untouched and allows
processing of almost arbitrarily sized strings.
removed a number of temporary files from the repo (they would also prevent proper building on target OSes)
Merge pull request #1 from wchristian/crash_test

here's a crashing test and a fix