Log Message:
Update to 1.5

Upstream changes:
1.5  Sat Jul 11 03:56:06 CEST 2015
	- fix a heap overflow (testcase by Krzysztof Wojta�).
        - on systems that support it (posix + mmap + map_anonymous),
          allocate all dynamic areas via mmap and put four guard
          pages around them, to catch similar heap overflows
          safely in the future.
        - find a safer way to pass in CC/CFLAGS to uulib.
        - added stability canary support.