Update GeocoderAutoCompleteView to use RxJava's debounce

[zugaldia]

Reference implementation: https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java

Based on https://github.com/JakeWharton/RxBinding/blob/master/rxbinding/src/main/java/com/jakewharton/rxbinding/widget/RxAutoCompleteTextView.java.

[munyamikehove]

Came here because i can't seem to access GeocoderAutoCompleteView service when creating autocomplete widget .

Added

1. to my Android manifest
2. compile('com.mapbox.mapboxsdk:mapbox-android-sdk:4.0.1@aar') {
   transitive = true
   }
   and
   compile ('com.mapbox.mapboxsdk:mapbox-android-geocoder:1.0.0@aar'){
   transitive=true
   }
   to my build.gradle app module
3. mavenCentral() to my build.gradle project

what could be missing ?

[zugaldia]

@munyamikehove Thanks for trying MAS. This information however isn't relevant to this ticket, could you please send a note to help@mapbox.com instead? Thanks.

/cc: @cammace

[zugaldia]

Related: #131

[zugaldia]

It's unclear that debounce would bring benefits that could make up for the size of the Rx dependency. Let's close for now unless there's a clear usecase / need.