Update integration test to use refresh instead of sleep

* Use *.index.refresh API for forcing elasticsearch to refresh

* Update truthy/falsey matchers for rspec
Update travis versions
Update to 0.2.2aplpha working version
Merge pull request #25 from paulnsorensen/update-travis

Update travis versions
Merge pull request #26 from paulnsorensen/update-version

Update to 0.2.2aplpha working version
Merge branch 'master' into use-refresh
Merge pull request #20 from paulnsorensen/use-refresh

Update integration test to use refresh instead of sleep
Merge branch 'master' into make-rubocop-happy