Add new Methods

[rdohms]

This email outlines a few updates: https://groups.google.com/forum/?fromgroups=#!topic/meetup-api/zfNsUc9GfVw

• [x] POST /Batch (Moved to #11)
• [x] Create/Edit Event: publish_status, announcement, how_to_find_us, venue_visibility, rsvp_limit
• [x] GET /recommended/venues
• [x] Simple HTML description
• [x] POST /2/member/self / POST /2/member_photo: photo_sync
• [x] DELETE /2/member_photo
• [x] GET /2/event/:id: rsvp_rules
• [x] agree_to_refund