backports [21332] and [21333] from trunk, Refs #5733

syncs minilzo to 2.07, fix analog recording crashes on X86_64
patch by: jan [dot] nijs <ät> scarlet {dot} be


git-svn-id: http://svn.mythtv.org/svn/branches/release-0-21-fixes@21334 7dbf422c-18fa-0310-86e9-fd20926502f2