adding script for updating javadocs on gh-pages

Author: pwittchen

update_javadocs.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+git checkout master
+./gradlew clean androidJavadocs
+git checkout gh-pages
+rm -rf
+cp -avr library/build/docs/javadoc/* ./
+git add -A
+git commit -m "updating JavaDoc"
+rm -rf library/build/docs
+echo "javadocs updated"
+
+echo "javadocs updated - now you can push your changes"