Fixed some alignment issues that creeped in somehow and removed some old, out-commented debug code from the virtual memory interface
Threads that are spawned by the system now use the default stack size instead of some arbitrary value
Fixed a bug with mmap (the descriptions for the pages were allocated as a chunk, but freed as if they were single allocations, which could have lead to segmentation faults). linkd now respects the p_flags flags from the program header of the binary and mprotect()'s the pages correctly (only the binary itself though, not done for any loaded library yet)