Upgrade grpc to 1.7.3.

Fixes https://github.com/grpc/grpc-node/pull/45.

app/package.json

@@ -15,7 +15,7 @@
   },
   "license": "MIT",
   "dependencies": {
-    "grpc": "^1.6.6",
+    "grpc": "^1.7.3",
     "ps-node": "^0.1.6",
     "react-icons": "^2.2.5"
   }

app/yarn.lock

@@ -190,6 +190,10 @@ delegates@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
 
+detect-libc@^1.0.2:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/detect-libc/-/detect-libc-1.0.3.tgz#fa137c4bd698edf55cd5cd02ac559f91a4c4ba9b"
+
 ecc-jsbn@~0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/ecc-jsbn/-/ecc-jsbn-0.1.1.tgz#0fc73a9ed5f0d53c38193398523ef7e543777505"
@@ -289,15 +293,15 @@ graceful-fs@^4.1.2:
   version "4.1.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
 
-grpc@^1.6.6:
-  version "1.6.6"
-  resolved "https://registry.yarnpkg.com/grpc/-/grpc-1.6.6.tgz#2051784f6bd6134681fa2c4b5e75dc82c6c23ffa"
+grpc@^1.7.3:
+  version "1.7.3"
+  resolved "https://registry.yarnpkg.com/grpc/-/grpc-1.7.3.tgz#c9d034324e2ec8a06cfaa577a044a116f96c8c90"
   dependencies:
     arguejs "^0.2.3"
-    lodash "^4.17.4"
-    nan "^2.7.0"
-    node-pre-gyp "^0.6.38"
-    protobufjs "^5.0.2"
+    lodash "^4.15.0"
+    nan "^2.0.0"
+    node-pre-gyp "^0.6.39"
+    protobufjs "^5.0.0"
 
 har-schema@^1.0.5:
   version "1.0.5"
@@ -428,7 +432,7 @@ lcid@^1.0.0:
   dependencies:
     invert-kv "^1.0.0"
 
-lodash@^4.17.4:
+lodash@^4.15.0:
   version "4.17.4"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
 
@@ -476,9 +480,9 @@ ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
 
-nan@^2.7.0:
-  version "2.7.0"
-  resolved "https://registry.yarnpkg.com/nan/-/nan-2.7.0.tgz#d95bf721ec877e08db276ed3fc6eb78f9083ad46"
+nan@^2.0.0:
+  version "2.8.0"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.8.0.tgz#ed715f3fe9de02b57a5e6252d90a96675e1f085a"
 
 node-fetch@^1.0.1:
   version "1.7.2"
@@ -487,10 +491,11 @@ node-fetch@^1.0.1:
     encoding "^0.1.11"
     is-stream "^1.0.1"
 
-node-pre-gyp@^0.6.38:
-  version "0.6.38"
-  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.6.38.tgz#e92a20f83416415bb4086f6d1fb78b3da73d113d"
+node-pre-gyp@^0.6.39:
+  version "0.6.39"
+  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.6.39.tgz#c00e96860b23c0e1420ac7befc5044e1d78d8649"
   dependencies:
+    detect-libc "^1.0.2"
     hawk "3.1.3"
     mkdirp "^0.5.1"
     nopt "^4.0.1"
@@ -585,7 +590,7 @@ prop-types@15.5.8:
   dependencies:
     fbjs "^0.8.9"
 
-protobufjs@^5.0.2:
+protobufjs@^5.0.0:
   version "5.0.2"
   resolved "https://registry.yarnpkg.com/protobufjs/-/protobufjs-5.0.2.tgz#59748d7dcf03d2db22c13da9feb024e16ab80c91"
   dependencies: