* Snapshot from git (543dbb) (closes: #538163).

* Makefile:
  + Enable disk db (was always enabled in previous versions).

* debian/copyright:
  + Mention upstream git tree location.
* debian/rules:
  + Pass etcprefix at install time.
* debian/dirs:
  + Add etc for conffile installation.

* debian/patches/01_64bit_mem_addr.dpatch:
  + Updated.
* debian/patches/02_tsc_secs_fix.dpatch:
  + Removed; fixed upstream.
* debian/patches/03_memory_errors.dpatch:
  + Updated.