Ctop

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- feat: add openvz support
- feat: add pids cgroup support (max tasks)
- feat: scroll
- feat: repaint screen on resize
- feat: use Docker container names if possible
- improv: systemd integration
- improv: docker image
- fix: use relative path to 'which' (7)
- fix: crash when task is not present in cpuacct controller (9)
- fix: fix crash on terminals which do not support invisible cursors
- fix: workaround broken blkio on some system

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- feat: Python 3 support (NicolasLM)
- feat: fold/unfold cgroup tree
- feat: hint/error message when no cgroup is found and boot2docker is installed
- fix \3: crash when no cgroup is located
- fix: docker detection + actions under systemd

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- feat: detect container system type (docker, systemd, lxc)
- feat: attach, enter, stop, kill supported containers
- feat: select container / follow container
- fix: mutiple crashes related to small screens
- fix: tree render
- enhancement: rewrite README
- enhancement: drop 'docopt' dependency

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- enhancement: drop 'psutil' dependency
- enhancement: python 2.6 compatibility
- fix: phantom container lines after cgroup termination
- doc: add screenshot

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- add command line
- add choose columns, sort columns from command line
- add choose refresh rate from command line
- add tree view + toggle from cmdline + toggle from keyboard
- add pause mode to ease text selections
- add status bar
- add CHANGELOG
- fix parse of 1-line dict-like cgroup pseudo-files
- drop peak memory usage column, meaningless in practise

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- add blkio bw column
- add time column
- enhancement: header contrast
- enhancement: remove 1st header line
- enhancement: header contrast
- add sort toggle on click
- highlight sort column
- exit with 'q'