Handle Exception with improved Help when using "ct <subcommand>"

[PanadeEdu]

When inputting a command Partially, I expect the helpt to kick in.
The default Handling from Symphony isnt verry pretty.

Example:
Input: ct docker
Output:

[InvalidArgumentException]
Command "docker" is not defined.
Did you mean one of these?
docker:compose
docker:create
docker:iftop
docker:sniff
docker:mysql
docker:shell
docker:exec
docker:root
docker:cli
docker:up

By handling the Exception and Providing additional informations, this can improve the help functionality of clitools. (and lint the bloat of commands a bit ;)