support HTTP Basic Auth to download Datomic
correctly handle nil Riak properties
add SQL properties
prevent undesired blank lines in template
workaround because <% foo -%> did not work
multi-line <% if true -%> works correctly
Merge pull request #3 from bluemont/develop

Various improvements making the cookbook more flexible.
Added test suites for dev, riak, and sql protocols.
0.2.0
Merge branch 'release/0.2.0'