Revert "Issue #112: using '--force' option to force sphinx-apidoc to overwrite (among others) the module index file"
Revert "Issue #112: using '--force' option to force sphinx-apidoc to overwrite (among others) the module index file"

This reverts commit 3e1a97cd8029a925a251f71e5b55cde481b8e5ad.

NifTK/NiftyNet,NifTK/NiftyNet,NifTK/NiftyNet,NifTK/NiftyNet