change 'doc' directory and initialize for Sphinx
add some example pages and a TOC
ignore documentation _build directory
add jackson xml dependency
update query scraper for Guava and format a bit
include module-maker method in AgencyAndId serializer
use module maker method when registering AgencyAndId serializer
add an HttpHandler for Grizzly that does not use JAX-RS
register the JAX-RS-less HttpHandler with the Grizzly server
use version 2.3.0 of all Jackson modules, avoid cryptic failures
add gradle build script for otp-core
remove transitive dependencies
draft system for disk-backed GTFS loading
make all jersey versions the same, add missing dependency
define variables for spring and jersey versions
rename mapdb GTFS loader class, use Logger
draft classes for loading OSM into MapDB
Add node tracker class and test
Split out node and way loading to allow geographic and used-node filtering.

also update NodeTracker method names to match Set
Encapsulate MapDb in OSM class. Static OSM loader methods.