simplify ndarray-pack and zero-crossings

Author: archmoj

package-lock.json

@@ -127,7 +127,7 @@
     "ndarray-gradient": "git://github.com/archmoj/ndarray-gradient.git#19b7f9509de3049b9a1c16c821a1e094ccf4701d",
     "ndarray-linear-interpolate": "^1.0.0",
     "ndarray-ops": "git://github.com/archmoj/ndarray-ops.git#ce9969aa054262e6df6d54c2a07a39fcf7b7bb6d",
-    "ndarray-pack": "git://github.com/archmoj/ndarray-pack.git#ea900ab2929ea38e6754531f9249a9b462a6eec7",
+    "ndarray-pack": "git://github.com/archmoj/ndarray-pack.git#4a51cd5c0ba02a3717893021aba1df69830595b6",
     "parse-svg-path": "^0.1.2",
     "polybooljs": "^1.2.0",
     "probe-image-size": "^7.2.1",
@@ -152,7 +152,7 @@
     "vectorize-text": "^3.2.2",
     "webgl-context": "^2.2.0",
     "world-calendars": "^1.0.3",
-    "zero-crossings": "git://github.com/archmoj/zero-crossings.git#6ed800a885b18ec791ac2fbb91fb9edf33a8df07"
+    "zero-crossings": "git://github.com/archmoj/zero-crossings.git#bb8ea62d1014c3d8a1aa6e5d6332abf4dc371f94"
   },
   "devDependencies": {
     "amdefine": "^1.0.1",