Revert pry version
Remove superfluous helper directory

fix #307
Merge pull request #311 from korczis/fix-307-superfluous-directory

Remove superfluous helper directory
Merge pull request #310 from korczis/revert-pry

Revert pry version
Fix deployment
- Make zipping consume less memory
- Remove '.' root entry from the zip
Merge pull request #313 from jdenk/jde-fix-deploy

Fix deployment
Fix failing integration tests
Merge pull request #315 from jdenk/jde-fix-deploy-2

Fix failing integration tests
Fix failing integration tests
Merge pull request #316 from jdenk/jde-fix-deploy-3

Fix failing integration tests
Merge branch 'master' of https://github.com/gooddata/gooddata-ruby into schedules
Fixed edge case when params contains string with empty json - "{}"