Rename and sort headshots from DevNation/Summit.

The source images have been uploaded to google drive: https://drive.google.com/drive/folders/0B45y-3AAMgoAekVaME9EMDNDdFU

They need to be:

1. Renamed with the user using the following format: "FirstnameLastname_<number>.jpg"

2. They then need to be added to a separate directory using the same format: "FirstnameLastname"

3. The names need to be tracked in this spreadsheet: https://docs.google.com/spreadsheets/d/1CexgDRxHV8NhLLXoz_ATQa45a1qEfN9Pw0cFjwZ8bRo/edit#gid=0

4. Photos with no names should be stored in the "*NoNames" directory