More informal and gamer-oriented Civ Picking

[sl5net]

Users should be able to choose civ by write.
when not has assigned aleready before.

"hey. give civ gauls please. thanks"
"I want to play as the Romans."
"Give me the Greeks, please."
"I'll take the Egyptians."
"I want civ Gauls."
"Romans, please."
"Hey, anyone playing the Persians?" (Implying the user wants to play as the Persians)
"Is there a spot open for the Celts?" (Similar to the above)
"I'd prefer to be the Iberians if possible." (Expressing a preference)
"I'm good with any civ, but I'd love to try the Macedonians." (Open to suggestions but has a preference)