Merge remote-tracking branch 'remotes/mjt/tags/trivial-patches-2014-09-26' into staging

trivial patches for 2014-09-26

# gpg: Signature made Fri 26 Sep 2014 18:33:53 BST 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>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 6EE1 95D1 886E 8FFB 810D  4324 457C E0A0 8044 65C5
#      Subkey fingerprint: 6F67 E18E 7C91 C5B1 5514  66A7 BEE5 9D74 A4C3 D7DB

* remotes/mjt/tags/trivial-patches-2014-09-26:
  os-posix: report error message when lock file failed
  os-posix: remove confused errno
  os-posix: change tab to space avoid violating coding style
  qapi: Update docs given recent event, spacing fixes
  qapi: Ignore files created during make check
  qapi: Consistent whitespace in tests/Makefile
  vmxcap: Update according to SDM of September 2014
  .travis.yml: remove "make check" from main matrix
  .travis.yml: pre-seed sub-modules for speed
  .travis.yml: make the make slightly more parallel
  .travis.yml: add more linux-user to the build matrix
  tests: avoid running duplicate qom-tests

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