~petersanchez/wikimain

Updating contributing doc
Updating links to contributing doc
Adding some basic send-email commands
Updating formatting
Adding contributing docs
Another fix for public key url
Fixing formatting issue
Added system public PGP key
Adding basic lists documentation. Updating index for lists addition
Small updates all around
Another update to index
Updating index
Added hg patch submission diff style
Updated hg docs
Added link to patchbomb docs
Base docs for new setup
Initial commit