updating libs

package.json

@@ -30,7 +30,7 @@
     "csjs-inject": "^1.0.1",
     "csslint": "^1.0.2",
     "deep-equal": "^1.0.1",
-    "ethereumjs-util": "^5.1.2",
+    "ethereumjs-util": "^6.2.0",
     "ethers": "^4.0.27",
     "events": "^3.0.0",
     "execr": "^1.0.1",
@@ -53,12 +53,12 @@
     "npm-merge-driver": "^2.3.5",
     "npm-run-all": "^4.0.2",
     "onchange": "^3.2.1",
-    "remix-analyzer": "0.3.16",
-    "remix-debug": "0.3.18",
-    "remix-lib": "0.4.15",
-    "remix-solidity": "0.3.18",
+    "remix-analyzer": "0.3.17",
+    "remix-debug": "0.3.19",
+    "remix-lib": "0.4.16",
+    "remix-solidity": "0.3.19",
     "remix-tabs": "1.0.48",
-    "remix-tests": "0.1.21",
+    "remix-tests": "0.1.22",
     "remixd": "0.1.8-alpha.10",
     "request": "^2.83.0",
     "rimraf": "^2.6.1",