#25533 - Add gem dependencies and meta info to gemspec

This pull request is in response to some warnings encountered during the gem build process.  It adds a home page pointed to the gem's source code on Github, adds versions to the gem dependencies, and also improves the description and summary of the gem.

[#25533](https://squaremouth.lighthouseapp.com/projects/63460/tickets/25533-resolve-warnings-encountered-when-building-has_breadcrumb)