Fix for CocoaPods/Core#188
CHANGELOG
Renamed the evil podspec
Also added regex support to `pod spec which/cat/edit` for consistency.
shush rubocop
CHANGELOG typo in example
[Rubocop] Nuke Metrics/MethodLength rule
Merge pull request #2817 from CocoaPods/fix/Core-188

Fix Core#188 : pod search now uses plain-text + new optional `--regex` flag
Use --allow-warnings rather than --error-only for pod spec validation
Update Changelog