CB-11795 Add 'protective' entry to cordovaDependencies

The entry is required to protect end-users from fetching edge versions of the plugin by incompatible version of cordova. This also assumes that we will not introduce any regressions in compatibility w/ cordova in minor and patch releases. On every major release we will need to add similar entry with _next_ major version.

 This closes #184

package.json

@@ -45,6 +45,9 @@
     "cordovaDependencies": {
       "0.2.3": {
         "cordova": ">=3.1.0"
+      },
+      "2.0.0": {
+        "cordova": ">100"
       }
     }
   },