Implement early version of Autocomplete

...java/de/kuschku/quasseldroid_ng/service/QuasselService.kt

...de/kuschku/quasseldroid_ng/settings/AppearanceSettings.kt

...va/de/kuschku/quasseldroid_ng/settings/BacklogSettings.kt

...de/kuschku/quasseldroid_ng/settings/ConnectionSettings.kt

...main/java/de/kuschku/quasseldroid_ng/settings/Settings.kt

...de/kuschku/quasseldroid_ng/ui/chat/AutoCompleteAdapter.kt

...n/java/de/kuschku/quasseldroid_ng/ui/chat/ChatActivity.kt

...in/java/de/kuschku/quasseldroid_ng/ui/chat/InputEditor.kt

...va/de/kuschku/quasseldroid_ng/ui/chat/NickListFragment.kt

...ava/de/kuschku/quasseldroid_ng/ui/chat/ToolbarFragment.kt

...asseldroid_ng/ui/chat/buffers/BufferViewConfigFragment.kt

...uschku/quasseldroid_ng/ui/chat/messages/MessageAdapter.kt

...u/quasseldroid_ng/ui/chat/messages/MessageListFragment.kt

...uasseldroid_ng/ui/chat/messages/QuasselMessageRenderer.kt

...e/kuschku/quasseldroid_ng/ui/settings/SettingsFragment.kt

...kuschku/quasseldroid_ng/util/helper/CharSequenceHelper.kt

...chku/quasseldroid_ng/util/service/ServiceBoundActivity.kt

app/src/main/res/layout/layout_editor.xml

app/src/main/res/layout/layout_main.xml

app/src/main/res/values/strings_preferences.xml