Just bugfixes:

  Fix missing proper initialization of pv_list struct when adding pv.
  Fix (de)activation of RaidLVs with visible SubLVs.
  Prohibit mirrored 'mirror' log via lvcreate and lvconvert.
  Use sync io if async io_setup fails, or use_aio=0 is set in config.
  Fix more issues reported by coverity scan.

Updated Makefile to standards.

Signed-off-by: Rosen Penev <rosenp@gmail.com>