Add first working version after rewrite

Migrated my old script to a proper gem.
Add specs for Spinna::Config
Update specs of Spinna::Config
Move data_dir to its own file
Review structure of fixtures
Update gemspec
Setup TravisCI
Remove support for Ruby 1.8.x
Add spec for data_dir creation
DRY up the specs of Config
Add specs for Spinna::History
Tweak specs of the history class
Use a StringIO instance to fake the history log file
Refactor Spinna::Client and add tests
Add missing fixtures
Install new reporters for minitest
Fix issue with string interpolation

Seems like it doesnt work inside %q
Update the README
Update the README
Allow changing the data_dir with an env variable

You can now change the location of the data_dir by setting SPINNA_HOME
in your environment. This will mostly be used for testing.