upgrade to maven 3.2.3 to get jars via HTTPS
Added blockFords flag to make blocking on fords optional
Merge pull request #246 from rodneyodonnell/master

Added blockFords flag to make blocking on fords optional
log asynchronously, especially important for web module to avoid blocking if disc is busy
Add interfaces for Node, Way, and RoutingElement

Add interfaces for Node, Way, and RoutingElement to facilitate adding
alternate reader implementations for other file formats.
Simple osgb itn vml reader implementation.

Work towards being able to read the osgb itn format which appears to
contain similar data to ism but in a slightly different xml format.
Merge remote-tracking branch 'upstream/master'