- Update to criu 2.6:
New features:
* Ability to leave process stopped after restore
* Memory changes tracking for anonymous shared memory
* Deprecation option/environment
* First error message is reported back via RPC
* C/R of More IPCNS sysctls, xIDs of PTYs, TMEM on PPC64LE
Optimizations/improvements:
* Use service FD for transport sockets on restore
* Ability to turn pagemap-cache off (some kernels are buggy)
* The criu --help text has become better
Fixes:
* R/O-mounted root could block the dump
* Restore of cgroup.mm.oom_control could fail
* Cgroup fs bind mounts were detected with error
* Unaligned futex-es in parasite could cause dump to crash
* When compiled with gcc-4.9 parasite code crashed
* Failure to freeze cgroup didn't result in aborting of dump
* Wrong ns list was parsed when dumping userns (invisible
since nesting works only for mntns)
* Non-inheritable non-tty as stdin caused shell-job restore
to erroneously fail Error path in criu dedup could crash
Deprecated:
* Per-pid rlimit, itimers and posix-timers
* Separate image for epoll tfds (target file descriptors)

- Update to criu 2.5:
New features:
* C/R of fs.mqueue.msg*_default sysctls, Unix sockets with
overwritten paths, and Link-remap files in removed directories