Now `test_script_lower_than_current_version` does not require an Internet connection
Improved a comment
Fixed test_is_readable_all_files_lack_permissions
Warn when using a hazard generated by another user
Warn the user if she asks for statistical outputs but using a single hazard output
Merge pull request #1593 from gem/warn-single-hazard

Warn the user if she asks for statistical outputs but using a single hazard output
Merge pull request #1590 from gem/what_if_I_upgrade_mock

Now `test_script_lower_than_current_version` does not require an Internet connection
Removing the IsReadableTestCase
Removing the IsReadableTestCase
Merge branch 'master' of github.com:gem/oq-engine
Merge pull request #1591 from gem/file-permissions-test

Fixed test_is_readable_all_files_lack_permissions when run as root
Merge branch 'master' of github.com:gem/oq-engine
Changed the scenario hazard calculator to store the GMFs in a more compact form
Some refactoring
Fixed test_site_collection_and_ses_collection
Merge pull request #1595 from gem/fast-scenario

Fast scenario export
Changed the GMF export to avoid a query for each ses_id
Several improvements
Fixed an ordering issue
Added a limit on the export size for the GMFs