bumping versions to 2.2
Merge pull request #279 from pulp/mhrivnak-versions

bumping versions to 2.2
987663 - syncing of a distribution now uses a nectar factory to get the most appropriate downloader type for a given URL, defaulting to the requests library for HTTP. It also now uses the nectar config options that are specified in the importer config instead of always using a default config.
Merge pull request #280 from pulp/mhrivnak-987663

987663 - syncing of a distribution now uses a nectar factory to get the ...
Merge branch 'pulp-2.2' into pulp-2.2.1