Updated documentation for the data parameters for the create and edit post endpoints.
Testing word wrapping settings.
Corrected word wrapping on Edit Post data parameters.
Corrected word wrapping on Create Post data parameters.
Merged master changes into feature branch.
Added modified and ping keys to data parameter details and corrected parameter type in post route docs.
Merge pull request #212 from WP-API/posts-docs

Update Post route documentation to provide more detail for data parameter