Merge remote-tracking branch 'remotes/mjt/tags/pull-trivial-patches-2015-01-15' into staging

trivial patches for 2015-01-15

# gpg: Signature made Thu 15 Jan 2015 08:26:26 GMT using RSA key ID A4C3D7DB
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>"
# gpg:                 aka "Michael Tokarev <mjt@corpit.ru>"
# gpg:                 aka "Michael Tokarev <mjt@debian.org>"

* remotes/mjt/tags/pull-trivial-patches-2015-01-15:
  vl.c: fix some alignment issues
  blizzard: do not depend on VGA internals
  Makefile: Remove config.status and common.env during 'make distclean'
  target-openrisc: bugfix for dec_sys to decode instructions correctly
  Do not hang on full PTY
  misc: Fix new typos in comments
  target-arm: Fix typo in comment (seperately -> separately)
  target-tricore: Fix new typos
  migration/qemu-file.c: Don't shift left into sign bit
  translate-all: Mark map_exec() with the 'unused' attribute
  tests/hd-geo-test.c: Remove unused test_image variable
  vt82c686: avoid out-of-bounds read

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>