Replace "spermy" with "approximate" to mirror the RubyGems change in terminology
in pull request https://github.com/rubygems/rubygems/pull/124
Fixed grammar.
Better linting for Github URIs.

Does not longer warn for Github repositories with OAuth authentication.
Merge pull request #77 from neonichu/fix_github_url_linting

Better linting for Github URIs.
[linter] Homepage should not require a trailing slash
[linter] Shouldn't expose an exception when validating homepage
[rubocop] Class definition is too long

Temporary solution until Kapin gets round to refactoring the linter
Merge pull request #78 from CocoaPods/homepage-linter

Homepage linter fixes
Changed "approximate" to "optimistic" per the consensus from @orta, @irrationalfab and @Kapin.
Merge pull request #76 from luisdelarosa/approximate_version_operator

Replace usage of the term "spermy" with "optimistic".
[Changelog] Also Core deserves one
[Linter] Move homepage validation logic to CocoaPods full lint
Reinstate checks for gist.github.com