SmashNight, Match, and Youtube cleanup

[Jyckle]

This one spiraled a little:

For SmashNight model

• Added to the SmashNight model so that we can get the short title (like 5.2) directly from a queryset
• Added utility to auto-generate smashnight name on initial save

  For the API

• Added the smashnights endpoint
• Expanded and cleaned up the match filters to allow querying on multiple individuals, as well as on a SmashNight's short_title

  For Matches (Stole work from @coltatgh and expanded)

• Added winners_index, losers_index, round_name, title, and description as annotations on the Match Queryset so that we can get them directly
• Removed the sections of youtube_logic that are no longer needed

  For quickstart

• Added the logs command

[Jyckle]

Note: should resolve #9 and #13

[Jyckle]

Appreciate you integrating the changes we discussed from my branch and for setting an example with the filter updates I can study for future queries

Thanks for laying all the groundwork for this! Appreciate the concepts for how to get those properly labelled! If you ever have questions on the annotations stuff, let me know! Django docs are great, but it still took some trial and error to get used to them! Should keep our queries fast and in the database layer though!