added SimpleKML and SimpleXML dependency

This fixes #844 to add a dependency to SimpleKML
I've disabled lint error aborts because of the dependency on simplexml.

simplexml relies on javax.xml.  Those libraries are contained in the `stax-api` which have a dependency on ` javax.xml.stream` which isn't in Android.  

This is 'ok' for us, as simplexml never uses javax.stream anyway.  Annoying though.  Oh java.