REAME.splittable

Compiled from https://github.com/google/closure-compiler
at b11c9970d87579ae50cee7dcda771ac726c71867

Reasons to use custom release:

- Turned off property renaming in ADVANCED mode. Otherwise React plugins break.
- Need c4a104075d40dd2191b45de33d00b79edd45b97e
- Applied small patch to fix https://github.com/google/closure-compiler/issues/2170
- Fixed NPE in CommonJS rewrite path.

## Work remote

https://github.com/google/closure-compiler/pull/2190/files

```
diff --git a/src/com/google/javascript/jscomp/deps/ModuleLoader.java b/src/com/google/javascript/jscomp/deps/ModuleLoader.java
index 46cdaa6..910e619 100644
--- a/src/com/google/javascript/jscomp/deps/ModuleLoader.java
+++ b/src/com/google/javascript/jscomp/deps/ModuleLoader.java
@@ -368,10 +368,14 @@ public final class ModuleLoader {
     //   /foo/ -> bar/node_modules/baz/foo_bar_baz.js
     //   /foo/node_modules/bar/ -> baz/foo_bar_baz.js
     for (String modulePath : modulePaths) {
-      String[] nodeModulesDirs = modulePath.split("/node_modules/");
+      String splitPath = modulePath;
+      if (modulePath.startsWith("node_modules/")) {
+        splitPath = "/" + modulePath;
+      }
+      String[] nodeModulesDirs = splitPath.split("/node_modules/");
       String parentPath = "";
       for (int i = 0; i < nodeModulesDirs.length - 1; i++) {
-        if (i + 1 < nodeModulesDirs.length) {
+        if (i + 1 < nodeModulesDirs.length && !nodeModulesDirs[i].equals("")) {
           parentPath += nodeModulesDirs[i] + "/";
         }
         String subPath = modulePath.substring(parentPath.length() + "node_modules/".length());
```