Linus' Kitchen v0.6 Release

Linus' Kitchen v0.6 is a maintenance release with a few bugfixes and improvements.

Download the pre-built .ova image here:
https://tkndevpacks.blob.core.windows.net/developer-vms/linus-kitchen-v0.6.0_vmware.ova

Bugfixes and Improvements (see CHANGELOG):
https://github.com/tknerr/linus-kitchen/blob/master/CHANGELOG.md#06-may-9-2019

Bugfixes:

• ensure correct version of docker cli and daemon are installed (see PR #88)
• fix incorrect line endings in Git PS1 when provisioned from Windows host (see PR #86)
• fix broken status indication in Git PS1 prompt (see PR #83)
• fix broken "Sofware Updater" by disabling vagrant-cachier when packaging the VM (see PR #81)
• fix broken apt-get update due to duplicate definition of docker apt sources (see PR #80)

Improvements:

• remove docker-in-docker related workarounds no longer needed with CircleCI 2.0 (see PR #87)
• disable vagrant-cachier caching by default and allow to opt-in instead (see PR #85)
• install xfreerdp so that we can use vagrant rdp with Windows VMs (see PR #84)
• improve README regarding regional settings and input languages (see PR #82)
• make chef run fully idempotent again (see PR #79)