Add a rake task for generating the gemspec files #97
This will help people using a local kramdown reference, i.e.
As no generic .gemspec is maintained within the repository, it will not help people wanting a specific commit, pull request, or the latest dev version, such as:
We would love to see a .gemspec in master, as it would allow much more flexible versioning and pull request testing for users of bundler, but it's out of scope for this request.
…r, if the gemspec is commited) a specific remote version of kramdown..