Merge pull request #139 from splintermind/gold

gnome update to 0.75, GUI fixes for a few options
Fix regressions introduced in a7c837824540afa7a0336b484b633132de0ba53c

Regressions fixed:
    - Mercs have scalps again
    - Various creatures have their creature classes back
    - Soap can be madefrom ash, oil and fuel again
    - Formatting in reaction_masterwork.txt sucks less
    - Fixed broken orc manual

Fixes #143 (hopefully), and is relevant to discussion on #130
Merge remote-tracking branch 'upstream/gold' into gold