Allow the specification of a source URL in a Podfile
[Linter] Work around Xcode issue where build passes but lint fails.

Fixes #2394.
Merge branch 'opentable-ocho'
[CHANGELOG] Remove all link shortcuts to contributors.
[CHANGELOG] Fix formatting.
Make the specification of URL in Podfile much more robust
[Documentation] Clarify what Analyzer#sources returns
[AnalyzerSpec] Use # when describing a single method
[SourcesManager] Dont use modifier unless on monster raise statement.

Thanks @k0nserv!
[SourcesManagerSpec] Make it clearer that #source_with_url returns something.

Thanks @mrackwitz!
[Documentation] Fix spelling error in analyzer docs
Sanitizing Plist UTF8 strings #2482
Reverting back to old hash syntax.
[CHANGELOG] Adding UTF-8 bug issue
[pod init] Set `source` directive to use `master` repo URL.
Adding support for Ruby <1.9 versions.
Merge pull request #2497 from martincik/master

Sanitizing Plist UTF8 strings #2482
[Changelog] Add entry about specifying sources in the Podfile by URL
[Gemfile] Return to Core master branch
[Changelog] Update wording of Podfile sources entry

Thanks @orta