Merge branch 'ime-support' of https://github.com/DDNStorage/fio-public into ddn-ime

* 'ime-support' of https://github.com/DDNStorage/fio-public:
  Add support for DDN's Infinite Memory Engine

diff --cc HOWTO
Simple merge

diff --cc Makefile
Simple merge

diff --cc configure
Simple merge

diff --cc options.c
Simple merge