Remove fab actions shadow on pre lollipop devices

This is a temporary solution to #292

android/app/build.gradle

 dependencies {
     compile fileTree(dir: "libs", include: ["*.jar"])
     compile "com.aurelhubert:ahbottomnavigation:1.3.3"
-    compile "com.android.support:appcompat-v7:23.0.1"
-    compile 'com.android.support:design:23.1.1'
+    compile "com.android.support:appcompat-v7:23.3.0"
+    compile 'com.android.support:design:23.3.0'
     compile "com.facebook.react:react-native:+"  // From node_modules
     compile 'com.balysv.materialmenu:material-menu-toolbar:1.5.4'
 

android/app/src/main/java/com/reactnativenavigation/views/FloatingActionButtonCoordinator.java

 import android.animation.AnimatorListenerAdapter;
 import android.content.res.ColorStateList;
 import android.graphics.drawable.Drawable;
+import android.os.Build;
 import android.support.annotation.FloatRange;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
             action.setBackgroundTintList(ColorStateList.valueOf(actionParams.backgroundColor.getColor()));
         }
         action.setSize(FloatingActionButton.SIZE_MINI);
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
+            action.setCompatElevation(0);
+        }
         return action;
     }