ChangeLog, e2p.h, feature.c:

ChangeLog, e2p.h, feature.c:
  feature.c: Fix GCC warnings; add const to the char * types in the
  	function prototypes for e2p_feature2string and e2p_edit_feature.
ChangeLog, uuid.h, uuid_time.c:
  uuid_time.c (variant_string): Declare to be static to avoid gcc warnings.
  uuid.h: Add function prototypes for uuid_generate_random() and
  	uuid_generate_time().
ChangeLog, chattr.c:
  chattr.c: Add hack to compile in a definition for S_ISLNK so we can
  	successfully compile even with warnings turned on.