[MC-116986] = is not valid json, resource packs using it broken

Mod Note

All json files now use strict json.

{ "model": "oak_log_0", "x": 90, "y": 90, "weight"=20 },

Should be:

{ "model": "oak_log_0", "x": 90, "y": 90, "weight":20 },

The "weight" option in resource packs no longer works: it just gives an error.
Steps to reproduce:
1. Download a randomized blocks resource pack. I used Vaderman27's.
2. Open up a world, and place down a few of the blocks that had been randomized in the pack. They should show up as missing texture cubes.

Unable to load definition minecraft:tall_grass
java.lang.RuntimeException: Encountered an exception when loading model definition of 'minecraft:tall_grass' from: 'minecraft:blockstates/tall_grass.json' in resourcepack: 'Blocks Pack V1.0'
	at cfj.a(SourceFile:308)
	at cfj.a(SourceFile:293)
	at cfj.a(SourceFile:282)
	at cfj.b(SourceFile:206)
	at cfj.a(SourceFile:182)
	at cfk.a(SourceFile:23)
	at ced.c(SourceFile:105)
	at ced.a(SourceFile:93)
	at bhh.f(SourceFile:720)
	at bhh.c(SourceFile:1852)
	at bhh.aB(SourceFile:1735)
	at bhh.t(SourceFile:1621)
	at bhh.ax(SourceFile:964)
	at bhh.a(SourceFile:404)
	at net.minecraft.client.main.Main.main(SourceFile:123)
Caused by: com.google.gson.JsonSyntaxException: com.google.gson.stream.MalformedJsonException: Use JsonReader.setLenient(true) to accept malformed JSON at line 3 column 55 path $.variants.normal[0].weight
	at com.google.gson.internal.Streams.parse(Streams.java:60)
	at com.google.gson.internal.bind.TreeTypeAdapter.read(TreeTypeAdapter.java:65)
	at qm.a(SourceFile:492)
	at qm.a(SourceFile:532)
	at bvd.a(SourceFile:39)
	at cfj.a(SourceFile:306)
	... 14 more
Caused by: com.google.gson.stream.MalformedJsonException: Use JsonReader.setLenient(true) to accept malformed JSON at line 3 column 55 path $.variants.normal[0].weight
	at com.google.gson.stream.JsonReader.syntaxError(JsonReader.java:1559)
	at com.google.gson.stream.JsonReader.checkLenient(JsonReader.java:1401)
	at com.google.gson.stream.JsonReader.doPeek(JsonReader.java:524)
	at com.google.gson.stream.JsonReader.peek(JsonReader.java:425)
	at com.google.gson.internal.bind.TypeAdapters$29.read(TypeAdapters.java:716)
	at com.google.gson.internal.bind.TypeAdapters$29.read(TypeAdapters.java:739)
	at com.google.gson.internal.bind.TypeAdapters$29.read(TypeAdapters.java:731)
	at com.google.gson.internal.bind.TypeAdapters$29.read(TypeAdapters.java:739)
	at com.google.gson.internal.bind.TypeAdapters$29.read(TypeAdapters.java:739)
	at com.google.gson.internal.bind.TypeAdapters$29.read(TypeAdapters.java:714)
	at com.google.gson.internal.Streams.parse(Streams.java:48)
	... 19 more