Rename testAllImplementers to testAllImplementations.

Matches what actually is happening...and what I kept typing...

README.md

@@ -136,7 +136,7 @@ Additional test suite runtime configuration can be done via the `settings` key
 in a `localConfig.cjs`. The current global settings are:
 
   * `enableInteropTests` - enable/disable the cross-implementation "interop" tests
-  * `testAllImplementers` - enable/disable testing _all_ implementations (not
+  * `testAllImplementations` - enable/disable testing _all_ implementations (not
     just what's in `localConfig.cjs`)
 
 Both of these settings are `false` when `localConfig.cjs` is present, but may be
@@ -147,7 +147,7 @@ module.exports = {
   "settings": {
     // overriding the default, false, for local testing
     "enableInteropTests": true,
-    "testAllImplementers": true
+    "testAllImplementations": true
   },
   "implementations": [{
     "name": "My Company",

implementations/index.js

@@ -31,10 +31,10 @@ const localConfig = getLocalManifest('localConfig.cjs');
 export const localSettings = (Object.keys(localConfig).length > 0) ?
   // we have a localConfig object, so merge in local defaults
   {...localConfig?.settings,
-    ...{enableInteropTests: false, testAllImplementers: false}} :
+    ...{enableInteropTests: false, testAllImplementations: false}} :
   // otherwise, return the global defaults
   // FIXME: ...consider renaming `localSettings` as it can hold global ones...
-  {enableInteropTests: true, testAllImplementers: true};
+  {enableInteropTests: true, testAllImplementations: true};
 
 // get localConfig and look for an implementations property
 const local = localConfig?.implementations || [];
@@ -44,6 +44,6 @@ const all = remote.concat(local);
 
 // if local implementations are defined only return local implementations
 export const implementerFiles = local.length ?
-  // unless testAllImplementers is true...in which case, include them all
-  (localSettings.testAllImplementers === true ? all : local) :
+  // unless testAllImplementations is true...in which case, include them all
+  (localSettings.testAllImplementations === true ? all : local) :
   all;