Converted FSTYPE to an enum
Merge branch 'filesystem' of https://github.com/jnwatts/xinu-arm into filesystem

Conflicts:
	include/filesystem.h
Fixed a number of list bugs
Merge branch 'filesystem' of https://github.com/jnwatts/xinu-arm into filesystem
Fixed missing return value and added zmalloc
Fixed infinite loop
Change some warnings to errors
Fixed warnings
Changed more warnings into errors
Fixed function prototypes
Removed unused test function
Merge branch 'filesystem' of https://github.com/jnwatts/xinu-arm into filesystem
Added calls to free()
Minor debugging fixes
Merge branch 'filesystem' of https://github.com/jnwatts/xinu-arm into filesystem
Merge remote-tracking branch 'github/filesystem' into integrating_filesystem