Fix(throttling): change singleAddRemoveBufferDuration option default …

…to 0

in order to avoid confusing app developer due to the fact that `addLayer` becomes asynchronous when this option is enabled (i.e. value >= 0).
Also updated the README API section accordingly.

Fixes #11

README.md

@@ -147,7 +147,7 @@ the Control, markers will automatically cluster / be removed.
 ### Options
 | Option  | Type  | Default | Description |
 | :------ | :-----| :------ | :---------- |
-| **singleAddRemoveBufferDuration** | `Number` | `100` | Gathers all calls to `addLayer` and `removeLayer` single operations (on this MCG) that happen during the specified duration (in ms) for batch processing. Similar to throttling with execution on trailing edge only. Use `0` to disable throttling. |
+| **singleAddRemoveBufferDuration** | `Number` | `0` | Gathers all calls to `addLayer` and `removeLayer` single operations (on this MCG) that happen during the specified duration (in ms) for batch processing. Similar to throttling with execution on trailing edge only. Use `0` to disable throttling. Disabled by default (see [#11](https://github.com/ghybs/Leaflet.MarkerCluster.LayerSupport/issues/11)) |
 
 
 ### Methods

build/readme.template.md

@@ -147,7 +147,7 @@ the Control, markers will automatically cluster / be removed.
 ### Options
 | Option  | Type  | Default | Description |
 | :------ | :-----| :------ | :---------- |
-| **singleAddRemoveBufferDuration** | `Number` | `100` | Gathers all calls to `addLayer` and `removeLayer` single operations (on this MCG) that happen during the specified duration (in ms) for batch processing. Similar to throttling with execution on trailing edge only. Use `0` to disable throttling. |
+| **singleAddRemoveBufferDuration** | `Number` | `0` | Gathers all calls to `addLayer` and `removeLayer` single operations (on this MCG) that happen during the specified duration (in ms) for batch processing. Similar to throttling with execution on trailing edge only. Use `0` to disable throttling. Disabled by default (see [#11](https://github.com/ghybs/Leaflet.MarkerCluster.LayerSupport/issues/11)) |
 
 
 ### Methods

src/layersupport.js

@@ -8,7 +8,7 @@ L.MarkerClusterGroup.LayerSupport = L.MarkerClusterGroup.extend({
 
 	options: {
 		// Buffer single addLayer and removeLayer requests for efficiency.
-		singleAddRemoveBufferDuration: 100 // in ms.
+		singleAddRemoveBufferDuration: 0 // in ms.
 	},
 
 	initialize: function (options) {