Lua API fixes

* `print()` and `warn()` now work correctly with `nil` arguments
* Typo: `gpt-neo-1.3M` has been corrected to `gpt-neo-1.3B`
* Regeneration is no longer triggered when writing to `keysecondary` of
  a non-selective key
* Handle `genamt` changes in generation modifier properly
* Writing to `kobold.settings.numseqs` from a generation modifier no
  longer affects
* Formatting options in `kobold.settings` have been fixed
* Added aliases for setting names
* Fix behaviour of editing story chunks from a generation modifier
* Warnings are now yellow instead of red
* kobold.logits is now the raw logits prior to being filtered, like
  the documentation says, rather than after being filtered
* Some erroneous comments and error messages have been corrected
* These parts of the API have now been implemented properly:
    * `compute_context()` methods
    * `kobold.authorsnote`
    * `kobold.restart_generation()`

static/application.js

@@ -646,6 +646,7 @@ function hideMessage() {
 }
 
 function showWaitAnimation() {
+	hideWaitAnimation();
 	$("#inputrowright").append("<img id=\"waitanim\" src=\"static/thinking.gif\"/>");
 }