Can't always hear what other players say correctly.

[verbitan]

Whilst adding JUnit tests I discovered that the parser doesn't always correctly parse what a player has heard from another player.

It appears that the parser isn't handling square brackets and messages starting with numbers correctly.

E.g.

• Other player says "NOhj-S[<1bD]", player hears "NOhj-S[]".
• Other player says "7z8h(0N5aD", player hears "Parse Exception".