Reorganize directory structure of http API documentation
Rename files for API query docs
Rename 'http' directory to 'api'
Attempt to fix links based on new directory structure
Create v2 directory and copy existing docs over

This is just an initial copy to allow us to see diffs.  These
docs are not updated to match up with the latest versions
(/v2) from the puppetdb repo yet.
Update `curl.markdown` to reflect latest changes from puppetdb repo
Update `facts` docs to reflect latest changes from puppetdb repo
Update `commands.markdown` to reflect latest changes from puppetdb repo
Update `metrics.markdown` to reflect latest changes from puppetdb repo
Update document titles to `PuppetDB 1.1`
Update `nodes.markdown` to reflect latest changes in puppetdb repo
Update `resources.markdown` to reflect latest changes from puppetdb repo