* Add a copy of iscsi_read_sysfs_value() as aoe_read_sysfs_value().
  Should probably go into libshare.c instead at some point.
* Add initial code to aoe_enable_share_one() and aoe_enable_share().
  Compiles, and should work without much problem.
* Add initial code to aoe_get_shareopts_cb(), aoe_get_shareopts()
  and aoe_validate_shareopts() that will retrieve and verify the
  options 'shelf'(int), 'slot'(int) and 'netif'(char *).
* Rename 'aoe_share_[st]' to the more correct 'aoe_shareopts_[st]'.