Tweaked PropertyInterface.h so I could use g++ 4.7.3 and boost 1.53
boost 1.41 didn't work out of the box with g++ 4.7.3, so I had to upgrade it.
Merge pull-request
Make core framework compile on BOOST filesystem API v3
Fix problems when using --with-boost
Ensure backwords compatibility with Boost filesystem API v2
Updates for 1.8.5-rc1
Updates for 1.8.5-rc2
Updates for 1.8.5
Updates for 1.8.5
Fixes to allow compilation on Ubuntu 12.04 with boost 1.46.1-7ubuntu3

By default, allow file-system API version 3 to be used, but remain
compatible with version 2.