Refactor download queue

package-lock.json

@@ -2124,15 +2124,6 @@
         "defer-to-connect": "^1.0.1"
       }
     },
-    "@types/better-queue": {
-      "version": "3.8.2",
-      "resolved": "https://registry.npmjs.org/@types/better-queue/-/better-queue-3.8.2.tgz",
-      "integrity": "sha512-KMFFgojmy10+npJiw/XkY2i+UD96NZmo4L0xuw8DRfEXB4a70rS6YHzqpb7Xgh1+TwWFsIHbsK8fFkvMTxEASA==",
-      "dev": true,
-      "requires": {
-        "@types/node": "*"
-      }
-    },
     "@types/cli-color": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/@types/cli-color/-/cli-color-2.0.0.tgz",
@@ -2195,6 +2186,12 @@
       "integrity": "sha512-tHq6qdbT9U1IRSGf14CL0pUlULksvY9OZ+5eEgl1N7t+OA3tGvNpxJCzuKQlsNgCVwbAs670L1vcVQi8j9HjnA==",
       "dev": true
     },
+    "@types/mv": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/@types/mv/-/mv-2.1.0.tgz",
+      "integrity": "sha512-9uDB9lojfIQipxfI308//b4c5isHs6uMo3kIMzv73FPdXmMnAk6iELHGI849cuuDPHy6aXBwN/q9gMzjRyhJ+w==",
+      "dev": true
+    },
     "@types/needle": {
       "version": "2.0.4",
       "resolved": "https://registry.npmjs.org/@types/needle/-/needle-2.0.4.tgz",
@@ -2215,6 +2212,16 @@
       "integrity": "sha512-ce5d3q03Ex0sy4R14722Rmt6MT07Ua+k4FwDfdcToYJcMKNtRVQvJ6JCAPdAmAnbRb6CsX6aYb9m96NGod9uTw==",
       "dev": true
     },
+    "@types/rimraf": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@types/rimraf/-/rimraf-3.0.0.tgz",
+      "integrity": "sha512-7WhJ0MdpFgYQPXlF4Dx+DhgvlPCfz/x5mHaeDQAKhcenvQP1KCpLQ18JklAqeGMYSAT2PxLpzd0g2/HE7fj7hQ==",
+      "dev": true,
+      "requires": {
+        "@types/glob": "*",
+        "@types/node": "*"
+      }
+    },
     "@types/source-list-map": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/@types/source-list-map/-/source-list-map-0.1.2.tgz",
@@ -3353,21 +3360,6 @@
         }
       }
     },
-    "better-queue": {
-      "version": "3.8.10",
-      "resolved": "https://registry.npmjs.org/better-queue/-/better-queue-3.8.10.tgz",
-      "integrity": "sha512-e3gwNZgDCnNWl0An0Tz6sUjKDV9m6aB+K9Xg//vYeo8+KiH8pWhLFxkawcXhm6FpM//GfD9IQv/kmvWCAVVpKA==",
-      "requires": {
-        "better-queue-memory": "^1.0.1",
-        "node-eta": "^0.9.0",
-        "uuid": "^3.0.0"
-      }
-    },
-    "better-queue-memory": {
-      "version": "1.0.4",
-      "resolved": "https://registry.npmjs.org/better-queue-memory/-/better-queue-memory-1.0.4.tgz",
-      "integrity": "sha512-SWg5wFIShYffEmJpI6LgbL8/3Dqhku7xI1oEiy6FroP9DbcZlG0ZDjxvPdP9t7hTGW40IpIcC6zVoGT1oxjOuA=="
-    },
     "big.js": {
       "version": "5.2.2",
       "resolved": "https://registry.npmjs.org/big.js/-/big.js-5.2.2.tgz",
@@ -4388,6 +4380,11 @@
       "integrity": "sha1-3dgA2gxmEnOTzKWVDqloo6rxJTs=",
       "dev": true
     },
+    "comparators": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/comparators/-/comparators-3.0.2.tgz",
+      "integrity": "sha512-Tfum570X4APe7vEQdDjoMZssxeyW4xuH/oYbI/fXGwJZ/rIhzBrfykfHf6LUVhk0GzeFhI6oYuOr1y7PRV7tng=="
+    },
     "component-emitter": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.3.0.tgz",
@@ -11679,6 +11676,38 @@
       "resolved": "https://registry.npmjs.org/mute-stream/-/mute-stream-0.0.8.tgz",
       "integrity": "sha512-nnbWWOkoWyUsTjKrhgD0dcz22mdkSnpYqbEjIm2nhwhuxlSkpywJmBo8h0ZqJdkp73mb90SssHkN4rsRaBAfAA=="
     },
+    "mv": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/mv/-/mv-2.1.1.tgz",
+      "integrity": "sha1-rmzg1vbV4KT32JN5jQPB6pVZtqI=",
+      "requires": {
+        "mkdirp": "~0.5.1",
+        "ncp": "~2.0.0",
+        "rimraf": "~2.4.0"
+      },
+      "dependencies": {
+        "glob": {
+          "version": "6.0.4",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-6.0.4.tgz",
+          "integrity": "sha1-DwiGD2oVUSey+t1PnOJLGqtuTSI=",
+          "requires": {
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "2 || 3",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
+          }
+        },
+        "rimraf": {
+          "version": "2.4.5",
+          "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.4.5.tgz",
+          "integrity": "sha1-7nEM5dk6j9uFb7Xqj/Di11k0sto=",
+          "requires": {
+            "glob": "^6.0.1"
+          }
+        }
+      }
+    },
     "nan": {
       "version": "2.14.1",
       "resolved": "https://registry.npmjs.org/nan/-/nan-2.14.1.tgz",
@@ -11709,6 +11738,11 @@
       "integrity": "sha1-Sr6/7tdUHywnrPspvbvRXI1bpPc=",
       "dev": true
     },
+    "ncp": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/ncp/-/ncp-2.0.0.tgz",
+      "integrity": "sha1-GVoh1sRuNh0vsSgbo4uR6d9727M="
+    },
     "needle": {
       "version": "2.3.2",
       "resolved": "https://registry.npmjs.org/needle/-/needle-2.3.2.tgz",
@@ -11805,11 +11839,6 @@
         }
       }
     },
-    "node-eta": {
-      "version": "0.9.0",
-      "resolved": "https://registry.npmjs.org/node-eta/-/node-eta-0.9.0.tgz",
-      "integrity": "sha1-n7CwmbzSoCGUDmA8ZCVNwAPZp6g="
-    },
     "node-fetch": {
       "version": "2.6.0",
       "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.0.tgz",