update filepicker to 1.5.6

Author: tibbi

app/build.gradle

@@ -39,7 +39,7 @@ dependencies {
     compile 'com.android.support:appcompat-v7:23.4.0'
     compile 'com.android.support:design:23.4.0'
     compile 'com.github.bumptech.glide:glide:3.7.0'
-    compile 'com.simplemobiletools:filepicker:1.5.5@aar'
+    compile 'com.simplemobiletools:filepicker:1.5.6@aar'
     compile 'com.simplemobiletools:fileproperties:1.0.7@aar'
     compile 'com.bignerdranch.android:recyclerview-multiselect:0.2'