diff --git a/.gitignore b/.gitignore
index ca78e26..5d990d8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,19 +1,23 @@
-# Built application files
+# built application files
 *.apk
 *.ap_
 
-# Files for the ART/Dalvik VM
+# files for the dex VM
 *.dex
 
 # Java class files
 *.class
 
-# Generated files
+# built native files (uncomment if you build your own)
+# *.o
+# *.so
+
+# generated files
 bin/
 gen/
-out/
+app/release/
 
-# Gradle files
+# Ignore gradle files
 .gradle/
 build/
 
@@ -23,42 +27,18 @@ local.properties
 # Proguard folder generated by Eclipse
 proguard/
 
-# Log Files
-*.log
+# Eclipse Metadata
+.metadata/
 
-# Android Studio Navigation editor temp files
-.navigation/
+# Mac OS X clutter
+*.DS_Store
 
-# Android Studio captures folder
-captures/
+# Windows clutter
+Thumbs.db
 
-# IntelliJ
+# Intellij IDEA (see https://intellij-support.jetbrains.com/entries/23393067)
 .idea/workspace.xml
 .idea/tasks.xml
-.idea/gradle.xml
-.idea/assetWizardSettings.xml
-.idea/dictionaries
-.idea/libraries
-.idea/caches
-
-# Keystore files
-# Uncomment the following line if you do not want to check your keystore files in.
-#*.jks
-
-# External native build folder generated in Android Studio 2.2 and later
-.externalNativeBuild
-
-# Google Services (e.g. APIs or Firebase)
-google-services.json
-
-# Freeline
-freeline.py
-freeline/
-freeline_project_description.json
+.idea/datasources.xml
+.idea/dataSources.ids
 
-# fastlane
-fastlane/report.xml
-fastlane/Preview.html
-fastlane/screenshots
-fastlane/test_output
-fastlane/readme.md
diff --git a/.idea/misc.xml b/.idea/misc.xml
index e83cc76..e026154 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,39 +1,26 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="JavaScriptSettings">
-    <option name="languageLevel" value="ES6" />
-  </component>
   <component name="NullableNotNullManager">
     <option name="myDefaultNullable" value="android.support.annotation.Nullable" />
     <option name="myDefaultNotNull" value="android.support.annotation.NonNull" />
     <option name="myNullables">
       <value>
-        <list size="10">
+        <list size="5">
           <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.Nullable" />
           <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nullable" />
           <item index="2" class="java.lang.String" itemvalue="javax.annotation.CheckForNull" />
           <item index="3" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.Nullable" />
           <item index="4" class="java.lang.String" itemvalue="android.support.annotation.Nullable" />
-          <item index="5" class="java.lang.String" itemvalue="androidx.annotation.Nullable" />
-          <item index="6" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNullable" />
-          <item index="7" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.qual.Nullable" />
-          <item index="8" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NullableDecl" />
-          <item index="9" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NullableType" />
         </list>
       </value>
     </option>
     <option name="myNotNulls">
       <value>
-        <list size="9">
+        <list size="4">
           <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.NotNull" />
           <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nonnull" />
           <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.NonNull" />
           <item index="3" class="java.lang.String" itemvalue="android.support.annotation.NonNull" />
-          <item index="4" class="java.lang.String" itemvalue="androidx.annotation.NonNull" />
-          <item index="5" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNonNull" />
-          <item index="6" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.qual.NonNull" />
-          <item index="7" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NonNullDecl" />
-          <item index="8" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NonNullType" />
         </list>
       </value>
     </option>
diff --git a/.idea/modules.xml b/.idea/modules.xml
index 8fe1e65..1d58210 100644
--- a/.idea/modules.xml
+++ b/.idea/modules.xml
@@ -2,8 +2,8 @@
 <project version="4">
   <component name="ProjectModuleManager">
     <modules>
-      <module fileurl="file://$PROJECT_DIR$/.idea/LDAP-Sync.iml" filepath="$PROJECT_DIR$/.idea/LDAP-Sync.iml" />
       <module fileurl="file://$PROJECT_DIR$/app/app.iml" filepath="$PROJECT_DIR$/app/app.iml" />
+      <module fileurl="file://$PROJECT_DIR$/ldap_sync_2.0_as.iml" filepath="$PROJECT_DIR$/ldap_sync_2.0_as.iml" />
     </modules>
   </component>
 </project>
\ No newline at end of file
diff --git a/doc/FeatureGraphic.png b/doc/FeatureGraphic.png
new file mode 100644
index 0000000..c35caa3
Binary files /dev/null and b/doc/FeatureGraphic.png differ