Changes

* Multi-threaded tasks on 64bit ARM could segfault upon restore

* Multi-threaded tasks on 64bit ARM could segfault upon restore

* When doing "check" CRIU could leave un-killed piggie task

* When doing "check" CRIU could leave un-killed piggie task

* The --cpu-cap option: argument was parsed with errors, incorrect handling of 'fpu' option in restore mode

* The --cpu-cap option argument was parsed with errors

* Incorrect handling of --cpu-cap fpu compatibility mode on restore

* Criu ignored trailing CLI arguments that resulted in usage confusions

* Criu ignored trailing CLI arguments that resulted in usage confusions

* Irmap hints didn't include common "/" path

* Irmap hints didn't include common "/" path