Add base TOS

@sizzlmctwizzle,

Any specific words or rework you want off the bat? This should ideally go up within the next few days.
Some more etiquette rules

Applies to openuserjs/openuserjs.org#116

One of my favorite quotes is used in here from Moz the rest is from the ol' noggen.
Some clarification.

Applies to #116
Further requested clarification

* Applies to #116
Some more grammar things

* Applies to #116
Merge pull request #142 from Martii/LEGAL

Legal (TOS Ready Up)