Facilitate running in docker

[ngaro]

This script is used to run matrix-commander in a container but without needing the docker-command and all the options.

(Example: Instead of docker run --rm -v /my/chosen/folder:/data:z matrix-commander -m "hello" the regular matrix-commander -m "hello" will work fine.)

Only 1 difference: The optional options --interactive and --pipes are added to make sure piping can work probably

• If --interactive is given keyboard interaction will work fine (useful for things like --login) but piping will fail
• If --pipes is given keyboard interaction might give problems but piping will work as expected
• If none are given the setting of the var INTERACTIVE in the script itself is used