Merge pull request #1 from amandaharlin/master

removed some sections. added in call for speakers google docs form.
changed wording in call for speakers from submit your presentation to submit a proposal
Add year to conference website to avoid confusion
Add link to 2013 website
removed embed equals true on the google doc form
changed the word makes to make in the first paragraph.
Merge pull request #2 from amandaharlin/master

Changed wording for proposal submission and href's embed=true
added in the code of conduct section and link on the homepage.
changed emails to the thunderplainsconf email address. thanks vance
added in coc