Bump JS packages to rc.0 (#730)

Author: fcollonval

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "nbdime-top-repo",
-  "version": "4.0.0-alpha.0",
+  "version": "4.0.0-rc.0",
   "private": true,
   "workspaces": [
     "packages/*"

package.json

@@ -1,6 +1,6 @@
 {
   "name": "nbdime-jupyterlab",
-  "version": "3.0.0-alpha.2",
+  "version": "3.0.0-rc.0",
   "description": "A JupyterLab extension for showing Notebook diffs.",
   "keywords": [
     "jupyter",
@@ -58,7 +58,7 @@
     "@lumino/coreutils": "^2.1.2",
     "@lumino/disposable": "^2.1.2",
     "@lumino/widgets": "^2.3.0",
-    "nbdime": "^7.0.0-alpha.2"
+    "nbdime": "^7.0.0-rc.0"
   },
   "devDependencies": {
     "@jupyterlab/application": "^4.0.0",

packages/labextension/package.json

@@ -1,6 +1,6 @@
 {
   "name": "nbdime",
-  "version": "7.0.0-alpha.2",
+  "version": "7.0.0-rc.0",
   "description": "Diff and merge of Jupyter Notebooks",
   "repository": {
     "type": "git",

packages/nbdime/package.json

@@ -1,6 +1,6 @@
 {
   "name": "nbdime-webapp",
-  "version": "4.0.0-alpha.0",
+  "version": "4.0.0-rc.0",
   "private": true,
   "license": "BSD-3-Clause",
   "main": "static/nbdime.js",
@@ -27,7 +27,7 @@
     "@lumino/widgets": "^2.0.0",
     "alertify.js": "^1.0.12",
     "file-saver": "^2.0.1",
-    "nbdime": "^7.0.0-alpha.0"
+    "nbdime": "^7.0.0-rc.0"
   },
   "devDependencies": {
     "@types/file-saver": "^2.0.0",