Log Message:
Update ruby-yard to 0.8.7.6.

# 0.8.7.6

- Support using `@option` tag on keyword arg splat parameter. (#729)
- Add `.stats_options` for `YardocTask`. (#800, #801)

# 0.8.7.5 - October 26, 2014

- Fix linking of methods in top level namespace in method listing. (#776)
- Support using C macros in function declarations. (#810)
- YARD will no longer group comment blocks starting on the same column if they
  are preceded by code. (#798)
- Handle anonymous lambda calls in toplevel scope. (#774)
- Support I18n in `@overload` tags. (#794)
- Support `yard stats` for objects with no file property. (#792)
- Support for named arguments in Ruby >= 2.1. (#785)
- Exclude README backup files from YARD generation. (#790)
- Turned on the lax spacing option in Redcarpet to comply with the
  Markdown standard.
- Escape HTML in YARD server search placeholder template.
- Fix issue with `private_class_method` support. (#760, #767)
- Enable tables support by default in Redcarpet Markdown provider. (#765)