[Coveralls] Preliminary support
[Repo::Lint] Update for CocoaPods-Core changes
[Validator] Clean up
[Command::Setup] Don't create pre-commit hook
[SourcesManager] Add support for the search index
[Config] Update repos by default.

Closes #872.
[UserProjectIntegrator] Always return a Pathname in #workspace_path.

Closes #871
[Specs] Robustness of Command::Search tests
[Specs] Robustness
[PodSourceInstaller] Fix for paths case issues
[PathList] Escape glob metacharacters

Closes #862
Readme & Changelog [ci skip]
Update lockfiles for version bump
Release 0.17.0.rc6