v1.3.0

Usagi v1.3.0 fixes some annoying bugs with window sizing and scaling and
extreme memory usage by sfx. It includes a couple of nice features too,
like player setting for rotating the game. Devs can configure GIF
record length if they want longer ones.

▶ Watch a video overview of this release!

But the big change is how config works. The _config function that
returns the table of options still works, but it is now deprecated.
The new way is to create usagi.conf file:

name = My Game
game_id = some.unique.id.brettmakesgames.com
pixel_perfect = true

You can also just use magic comments at the top of your game's Lua
file, like:

-- name = My Game

So long as it's the first line of the file. This is useful for single-file
games and devtools within an Usagi game.

The motivation for the new way to configure Usagi games is that
the _config table could lead to footguns where usagi.GAME_W
and similar configurable values could be called before that
_config value is applied, leading to incorrect values. I think it's
better to separate the config from the game and not have this
be a problem at all.

Also, by having it be an external file or simple key = value in comments,
it's easier to parse by external tools and scripts. Win-win.

Thank you for the great community contributions in this release by
Achie, Goldenlion, Stew H, and Denis C!

Features:

• Configure games with a usagi.conf file or -- key = value frontmatter
  comments at the top of main.lua, instead of a _config() function.
  Frontmatter wins over usagi.conf, which wins over the now-deprecated
  _config(). usagi init creates a usagi.conf. See
  #55
• Config option for gif_length (seconds) to support recording longer (or
  shorter) gifs. See #98
• Game rotation setting in 90deg increments via the Pause menu's Settings; see
  #79
• Warn when requiring files with different casing on the disk, as it can lead to
  issues on different file-systems; see
  #81
• The first arg for gfx.text and gfx.text_ex no longer need to be strings,
  so gfx.text(10, 4, 4, gfx.COLOR_BLACK) renders 10 rather than erroring,
  making for a more convenient API; if it fails to convert, it defaults to empty
  string; see #99

Fixes:

• Nudge window size a little when launching so it's not too tiny when close to
  an integer scale; see #82
• Upstream fixes from sola-raylib relating to gamepad mappings and incorrect
  gamepad device identification; see
  #3 &
  #4
• Optimize sound effect memory usage (~4x less RAM usage); see
  #95