added facebook sdk; added toast for errors; improved lurequest error handling

app/build.gradle

     compile 'com.amulyakhare:com.amulyakhare.textdrawable:1.0.1'
     compile 'net.danlew:android.joda:2.9.4.2'
     compile 'com.google.firebase:firebase-ads:9.6.1'
+    compile 'com.facebook.android:facebook-android-sdk:4.5.0'
 }
 
 apply plugin: 'com.google.gms.google-services'

app/src/main/java/com/rthoni/stssaguenay/ui/fragments/HomeFragment.java

                 }, new LuPromise.LuConsumer<LuPromise.LuPromiseError>() {
                     @Override
                     public void execute(LuPromise.LuPromiseError data) {
+                        Toast.makeText(getContext(), data.getError(), Toast.LENGTH_LONG).show();
                         _swipeRefreshLayout.setRefreshing(false);
-                        //TODO
                     }
                 });
     }

luticateutils/src/main/java/com/luticate/utils/business/LuRequest.java

             @Override
             public void onErrorResponse(VolleyError error) {
                 int code = 0;
-                if (error != null && error.networkResponse != null)
-                {
-                    code = error.networkResponse.statusCode;
-                }
                 try
                 {
-                    JSONObject data = new JSONObject(new String(error.networkResponse.data));
-                    promise.reject(new LuPromise.LuPromiseError(data.getString("Message"), code));
+                    if (error != null) {
+                        if (error.networkResponse != null)
+                        {
+                            code = error.networkResponse.statusCode;
+                            JSONObject data = new JSONObject(new String(error.networkResponse.data));
+                            promise.reject(new LuPromise.LuPromiseError(data.getString("Message"), code));
+                        }
+                        else {
+                            if (error.getCause() != null) {
+                                promise.reject(new LuPromise.LuPromiseError(error.getCause().getMessage(), code));
+                            }
+                            else {
+                                promise.reject(new LuPromise.LuPromiseError(error.toString(), code));
+                            }
+                        }
+                    }
+                    else {
+                        promise.reject(new LuPromise.LuPromiseError("Unknown network error", code));
+                    }
                 } catch (Exception e)
                 {
                     promise.reject(new LuPromise.LuPromiseError(e.getMessage(), code));
                 }
-                promise.reject(new LuPromise.LuPromiseError(error.toString(), code));
             }
         };
     }