*  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