Explicitly use namespace std; add <new> header so we can use the "new"
keyword without throwing an exception
add safe_new() macro
Add support for extended attributes to fskit_entry.
Added better error handling for out-of-memory conditions originating
from STL containers.
Added getxattr, listxattr, setxattr, removexattr methods.  Need to
test...
Add *xattr headers to main header
getxattr: return the size of the attribute value, not the caller-given
size.  Also, copy up to $(attribute value size) data, not the
caller-given size.
Add test for xattr methods