v1.0.0: compatibility with MCG >= 1.0.4

Fixes:
- Compatibility with Leaflet.MarkerClusterGroup.LayerSupport sub-plugin.
- Dynamically added marker do not appear if outside initial view port.
Docs:
- Refactor demo pages to load selected Leaflet, MCG and MCG.Freezable versions, including locally built version.
- Move gh-pages branch into docs/ folder.
- Use build script for README.

Author: ghybs

README.md

@@ -117,7 +117,7 @@ far from the view port, accordingly with `removeOutsideVisibleBounds` option._
 ### Installing the sub-plugin
 
 #### Local copy
-1. Download the "<a href="https://github.com/ghybs/Leaflet.MarkerCluster.Freezable/releases/download/v0.1.1/leaflet.markercluster.freezable.js">`leaflet.markercluster.freezable.js`</a>" file from the [`v0.1.1` release](https://github.com/ghybs/Leaflet.MarkerCluster.Freezable/releases/tag/v0.1.1).
+1. Download the "<a href="https://github.com/ghybs/Leaflet.MarkerCluster.Freezable/releases/download/v1.0.0/leaflet.markercluster.freezable.js">`leaflet.markercluster.freezable.js`</a>" file from the [`v1.0.0` release](https://github.com/ghybs/Leaflet.MarkerCluster.Freezable/releases/tag/v1.0.0).
 2. Place the file alongside your page.
 3. Add the `script` tag (see [Quick Guide > HTML](#quick-guide)) to your page after Leaflet and Leaflet.markercluster scripts.
 
@@ -126,7 +126,7 @@ You can alternatively use the free [unpkg](https://unpkg.com) CDN service, but k
 
 ```html
 <!-- After Leaflet script -->
-<script src="https://unpkg.com/leaflet.markercluster.freezable@0.1.1/dist/leaflet.markercluster.freezable.js"></script>
+<script src="https://unpkg.com/leaflet.markercluster.freezable@1.0.0/dist/leaflet.markercluster.freezable.js"></script>
 ```
 
 #### npm

package.json

@@ -1,11 +1,13 @@
 {
   "name": "leaflet.markercluster.freezable",
   "_name": "Leaflet.MarkerCluster.Freezable",
-  "version": "0.1.1",
+  "version": "1.0.0",
   "_year": "2015-2016",
   "description": "Sub-plugin for Leaflet.markercluster plugin; adds the ability to freeze clusters at a specified zoom.",
   "main": "dist/leaflet.markercluster.freezable",
-  "files": ["dist/*.js"],
+  "files": [
+    "dist/*.js"
+  ],
   "directories": {
     "example": "examples"
   },