support for multiple collections
move splitter classes into their own package, pull all settings from Configuration instances.
remove old splitter classes from util/ since they will now live under splitter.*
use localhost for mongoimport to avoid ns not found in auth tests.
put teardown back the way it was
fail more gracefully on timeout, and extend timeout length when starting up mongod.
fix tab/space on indent.
formatting cleanup.
Convenience method for setting up multiple collections from within java code.
tweaks to multi collection split builder, and use random string in sharded test dirs
fix imports
add example of using multi splitter from java code.
Merge branch 'multi-splitter'
Merge branch 'master' of https://github.com/mongodb/mongo-hadoop