The principal change here is ptlrpc_connect_import and recovery are
merged and are now asynchronous and are run on ptlrpcd.

This branch also includes fixes for

  2477 (this was the initial bug)

  2355 recover for initial connections

  1934 (b_1934 was merged directly to b_recovery)

  1901 block all file creations until orphan recovery completes

  2423 client remove rq_connection from request struct

  2640 conf-sanity test_5, and proper cleanup in umount when
       cleanup log is not availale.

  2670 recovery timer race

  2532 mdc_close recovey bug

And few others that werent' filed.

*  Fixed 2684 ("static declaration of ep_nmd_merge...)

In the echo_client's prep/commit test ioo_bufcnt could be out of
sync with the npages given to obd_{prep,commit}rw.

- additional functionality: free routine checks for possible corruptions
  after given size

- check for invalid goald in ext3_new_blocks() and correct if needed

b=2370

r=ccooper

Fix problem where none of the tests were checking for a successfull cleanup.
Error in cleanup when modules are still loaded.

- clean up output directory creation

- ext3-mballoc* patches export ext3_new_blocks()

- make the output directory if it doesn't exist
- add a forgotten item to the key

- simplify iozone file cleanup a little
- scale each thread's io contribution based on the number of threads
- fix sloppy shell arg passing that accidentally worked

- teach the iozone test to use multiple threads
- add a -e argument to specify the obdecho module by hand
- the echo_filter test performs reads and on the right number of pages
- use more representative io sizes
- use 'getconf PAGE_SIZE' to find the page size on the machine

NOTE: subsytem initialize order problem is to be solved yet

do just as well.

r=shaver

work with --mkfsoptions of ost in lmc and lconf

- run an iostat -x on each block device during each test
- reformat a bit to make room for the iostat reports

    . NOT bump the module refcount when a new peer is found

    . Clean up all open connections and autoconnect route table entries on
      module unload.

- more carefully cleanup to avoid error messages in early cleanup