boost broke wesnoth and Sigil

[Thomas Klausner <tk%giga.or.at@localhost>]

Hi Adam!

The boost update broke wesnoth:
/scratch/games/wesnoth/work/wesnoth-1.10.3/src/image.cpp: In function 'size_t 
image::hash_value(const image::locator::value&)':
/scratch/games/wesnoth/work/wesnoth-1.10.3/src/image.cpp:352:36: error: no 
matching function for call to 'hash_value(const image::locator::type&)'
/scratch/games/wesnoth/work/wesnoth-1.10.3/src/image.cpp:348:8: note: candidate 
is: size_t image::hash_value(const image::locator::value&)

and Sigil:
/scratch/editors/Sigil/work/src/FlightCrew/ErrorMessages.cpp:57:37:   
instantiated from here
/scratch/editors/Sigil/work/.buildlink/include/boost/functional/hash/extensions.hpp:257:34:
 error: no matching function for call to 'hash_value(const 
FlightCrew::ResultId&)'
/scratch/editors/Sigil/work/.buildlink/include/boost/functional/hash/extensions.hpp:258:9:
 warning: control reaches end of non-void function

Seems to be the same problem. Please fix :)

Thanks,
 Thomas