Update README.md with more specific connection instructions

specifically indicate the need to install the appropriate gems and require the necessary libraries before connecting
Added Travis config.
Change some development group elements to debug and ignore that for Travis.
Merge pull request #1 from audionerd/patch-1

Update README.md with more specific connection instructions
Add README badges and remove JRuby from Travis.
Use more persistent DB instances in specs.
Release 1.0.0.
Merge branch 'origin/master'
[ci skip]