Revert "Updated README with running notes."

This reverts commit d48afa00a41b0957e849670cd73fc4f08b1b846c.
Added logo. Some refactoring on registration. Started new timeline things (e.g. coffeebrea).
Merge remote-tracking branch 'upstream/master' into development
Started improving landing page.
Merge remote-tracking branch 'upstream/master' into development
Added latest version of schedule

Also, sponsors and mosaic
Merge branch 'master' of https://github.com/tiagovarela/SESI-Conf into development