Kathara

* Add Exception log level
* Print Operating System in `check` command
* Fix Settings bug
* Fix Bash Autocompletion
* Fix link deletion progress bar

* Add Megalos (Kubernetes Manager) support
* Native tty wrappers for Unix/Windows for Docker exec and Socket-based for Kubernetes exec (using pyuv)
* Introduce bash autocompletion of commands on Linux
* Add TMUX Support (thanks to Marcel Großmann)
* It is now possible to specify a tag for a Docker image (thanks to Tommaso Caiazzi and Marcel Großmann)
* Support for unified version of Docker Network Plugin
* Minor fixes

Changelog
* Fix issue 101

N.B. This version has only been released on windows platform because it just fixes a Windows bug (101)

Changelog
* Fix no_shared and no_hosthome flags
* Fix lrestart
* Fix privileged flag in vstart

Changelog
* Fix Windows Connect
* Add custom machine sysctls
* Add lconfig command
* Fix machine binary files copy

Changelog
* Limit thread to 10 due to urllib3 limitations
* Fix multithread pull
* Removed duplicated code on list chunks
* Docker max_pool_size set to cpu_count
* remove check on default image on starting and add check update for docker_network_plugin
* add check update to docker images
* Moved few stuff from settings + Fix image pull
* fix quotes on mac connect command
* fix machine check update
* add check update to docker images
* fix quotes on mac connect command
* fix machine check update
* add plugin selection for linux platforms
* Fix iptables parsing (for network plugin) + Minor fixes
* Loading bar instead of text when starting/cleaning lab
* Fix to lab.ext interface names greater than 15 chars
* Fix to lclean when trying to clean an external interface without sudo
* Manager code polishing (moved deployment methods in Link/Machine, like undeploy)
* Add setting to enable ipv6