updated insanity

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.

r=phil

 - call vfs_rmdir() on directory orphans when removing them from
   PENDING
 - add a test for this case to replay-single
 - add open(O_DIRECTORY) to multiop

test cases for these bugs.
Also some test enhancments
  - add more lctl marks
  - add SETUP CLEANUP options to replay-single

 - dozens and dozens of fixes for working with 2.6 kernels
 - new 2.4 kernel APIs
 - uncountable bug fixes