Fixed bug 119 in Jira.
First implementation of map layers dialog change
updated functionality of settings button
hotfix to settings button in layout menu
Created service to find straight route
Update MapActivityLayers.java
Update RouteProvider.java
refactored gpx layers dialog
Merge branch 'master' of https://github.com/Bars107/osmand
Merge pull request #730 from Bars107/master

Added settings buttons for Gpx and POI in layot menu. Created straight route service.