Merge pull request #784 from murgatroid99/typescript_version_consistency_backport

Update top level typescript dependency (attempt 2)

package.json

@@ -44,7 +44,7 @@
     "through2": "^2.0.3",
     "ts-node": "^3.3.0",
     "tslint": "^5.5.0",
-    "typescript": "~2.7.0",
+    "typescript": "~3.3.3333",
     "xml2js": "^0.4.19"
   },
   "contributors": [

packages/grpc-js/package.json

@@ -20,8 +20,7 @@
     "@types/node": "^10.5.4",
     "clang-format": "^1.0.55",
     "gts": "^0.5.1",
-    "lodash": "^4.17.4",
-    "typescript": "~2.7.0"
+    "lodash": "^4.17.4"
   },
   "contributors": [
     {

packages/proto-loader/package.json

@@ -45,8 +45,7 @@
     "@types/lodash.camelcase": "^4.3.4",
     "@types/node": "^10.12.5",
     "clang-format": "^1.2.2",
-    "gts": "^0.5.3",
-    "typescript": "~2.7.2"
+    "gts": "^0.5.3"
   },
   "engines": {
     "node": ">=6"