sync request (unstable -> main)

[Matthias Klose]

please sync libffi (3.0.7-2) from unstable; all ubuntu changes are integrated in the debian package.

 libffi (3.0.7-2) unstable; urgency=low

   * Fix build failure on armel with -mfloat-abi=softfp.
   * Don't pessimize the code for newer armv6 and armv7 processors.
   * lib32ffi5: Add a conflict with libc6-i386 (<= 2.9-18). Closes: #533009.
   * Fix include of example in ffi_call(3). Closes: #512686.
   * Fix lintian errors and warnings.

[Jamie Strandboge (jdstrand)]

[Updating] libffi (3.0.7-1ubuntu2 [Ubuntu] < 3.0.7-2 [Debian])
 * Trying to add libffi...
  - <libffi_3.0.7-2.dsc: downloading from http://ftp.debian.org/debian/>
  - <libffi_3.0.7-2.diff.gz: downloading from http://ftp.debian.org/debian/>
  - <libffi_3.0.7.orig.tar.gz: already in distro - downloading from librarian>
I: libffi [main] -> libffi-dev_3.0.7-1ubuntu2 [main].
I: libffi [main] -> lib32ffi-dev_3.0.7-1ubuntu2 [main].
I: libffi [main] -> lib64ffi-dev_3.0.7-1ubuntu2 [main].
I: libffi [main] -> libffi5_3.0.7-1ubuntu2 [main].
I: libffi [main] -> lib32ffi5_3.0.7-1ubuntu2 [main].
I: libffi [main] -> lib64ffi5_3.0.7-1ubuntu2 [main].
I: libffi [main] -> libffi5-dbg_3.0.7-1ubuntu2 [main].