0.0.2i
	- Fix PKT_BUF_LIST error in fs/buffer.c
	- Fix pkt_find_dev in two spots, use q->queuedata in pkt_elevator_merge.
	- introduce pkt_make_request as READ remapper (and eventually add
	  block remapper for WRITEs too).
	- Loose READ/WRITE checks in pkt_elevator_merge and pkt_request, they
	  don't deal with anything but WRITEs after above change.
	- Fix pending request count in proc reading.
	- Fix increment usage bug for failed FMODE_WRITE opens.
	- Loose pd_lock/unlock, use io_request_lock for now. When block
	  switches to per-queue lock, a search/replace operation will be
	  sufficient.
	- Start to handle buffers non-uniform size buffers in a WRITE request.
	- Browse buffer cache hash table for possible bh victims
	- Fix blk_started_io to account buffers from buffer cache too
	- Do hole merging in regular elevator path
	- Fix bh_rq_in_between to look in the right direction
	- Remove sequencing from pkt_elevator
	- Use bh_cachep slab cache for private pool of buffer_heads
	- Remove old BH_Packet flag
	- Default udf to 2kB blocksize
	- Remove __getblk again
