update filepicker to 1.3.8

Author: tibbi

app/build.gradle

@@ -43,7 +43,7 @@ dependencies {
     compile 'com.android.support:design:23.4.0'
     compile 'com.jakewharton:butterknife:8.0.1'
     compile 'com.github.bumptech.glide:glide:3.7.0'
-    compile 'com.simplemobiletools:filepicker:1.3.7@aar'
+    compile 'com.simplemobiletools:filepicker:1.3.8@aar'
     compile 'com.simplemobiletools:fileproperties:1.0.2@aar'
     compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"