fakeroot: added head

Adds a HEAD to Fakeroot, specifies the non-functional status of Fakeroot on Yosemite in the stable release, moves to the upstream preferred package page, adds a slightly faster mirror as the main url & uses the standard url as the mirror.
```
In file included from libfakeroot.c:200:0:
wraptmpf.h:467:12: error: conflicting types for 'openat'
 extern int openat (int dir_fd, const char *pathname, int flags);
            ^
In file included from /usr/include/fcntl.h:23:0,
                 from libfakeroot.c:97:
/usr/include/sys/fcntl.h:470:5: note: previous declaration of 'openat' was here
 int openat(int, const char *, int, ...) __DARWIN_NOCANCEL(openat) __OSX_AVAILABLE_STARTING(__MAC_10_10, __IPHONE_8_0);
     ^
make[1]: *** [libfakeroot.lo] Error 1
make[1]: *** Waiting for unfinished jobs....
libtool: link: ( cd ".libs" && rm -f "libmacosx.la" && ln -s "../libmacosx.la" "libmacosx.la" )
libtool: link: gcc-4.9 -g -O2 -o faked faked.o  ./.libs/libcommunicate.a -ldl
make: *** [install-recursive] Error 1
```