pycon app refactor todos

todo.txt

event/templates/site_base.html - need to add EVENT_NAME and EVENT_YEAR to templates
event/templates/speakers/speaker_create_token.html - EVENT_NAME needed
event/templates/sponsors/index.html - EVENT_NAME needed 
event/templates/emails/speaker_invite/message.html - fix
event/templates/emails/speaker_invite/subject.txt - fix
event/templates/emails/speaker_no_profile/message.html -fix
event/templates/emails/speaker_no_profile/subject.txt -fix

event/templates/emails/speaker_addition/message.html - refactor later
event/templates/emails/speaker_addition/subject.txt - model change
event/apps/proposals/admin.py - Must revisit and push this into the model
event/apps/proposals/fixtures/proposals.json - skip
event/apps/proposals/models.py - part o fthe model refactor for session types


event/apps/review/models.py - hardcoded extreme pycon
event/apps/schedule/models.py - extreme pycon
event/templates/reviews/_review_table.html - extreme pycon
event/templates/reviews/review_detail.html - extreme pycon
event/templates/schedule/_grid_draft.html - extreme pycon
event/templates/schedule/conference.html - exteme pycon
event/templates/schedule/list_talks.html - extreme pycon
event/templates/schedule/presentation_detail.html - extreme pycon
event/templates/schedule/tmp_session_detail.html - extreme pycon