Remove python 2 support

Typo fixes, bugfix in `set` command

State of repo when migrated from github.com/lpechacek/cpuset

Update to 1.6 includes following changes:

* Fixes for Python 2 compatibility
* Code compaction for improved maintainability

Signed-off-by: Libor Pechacek <[email protected]>

Update to 1.6pre1 includes following changes:

* Make cpuset compatible with both Python 2 and 3
* Update package meta information

Signed-off-by: Libor Pechacek <[email protected]>

v1.5.8 release

Signed-off-by: Libor Pechacek <[email protected]>

Update NEWS with v1.5.7 release notes

Signed-off-by: Libor Pechacek <[email protected]>

Also set USER env var when execting new process with the --user

option.

Release 1.5.5 with fix for Issue#3.

Release 1.5.4

Includes patch by mostroski for Issue#2, fixes exception if
running tasks with non-existent uids.