v1.1.2

This is a bugfix and maintenance release.

C / C++:

• memset struct msghdr to 0 before calling recvmsg (fixes issue #90).
• fix eventlog memory leak when errors occur.

lcm-gen:

• Apply patch from bibocc to fix lcm-gen regression (fixes issue #92).
• fix emit-cpp for the case where it needs to includ both and
  .
• Resize vector in decode after checking whether the size > 0.
• fix tokenizer regression in parsing empty comment blocks (fixes issue #93).
• Add --version flag.
• Update manpage.