wix: add new json templates folder to MSI installers
wix: move library.zip and all *.pyd into a lib/ folder
wix: style-coal.css has been renamed
wix: only one KeyPath is allowed per Component
wix: update list of necessary pyd files
repoview: allow hash-copy to clipboard to be configured; change default to off
grep: fix whole-word searching
Add build outputs to .hgignore