New parser and boost 1.61

First release using the new non-boost parser. Everything should remain the same as before, but now one can use unquoted values of the form timeout = 200ms or action = Quit.

Boost is still used, and for those using fig we now build against boost 1.61.

Boost 1.60

Revving package.fig to point at boost 1.60

Modern GCC support

Fixes issues when building with newer boosts and GCCs; makes it possible to select the GCC version (from fig) via make GCC_VERSION=xx