added tests:
- type filed
- date range: provider_order_date, delivery_date, request_date, production_use_date,
puppet plugin - minor fixes
Don't call the clean deployment plugin for old deployments
Remove asset_change_history_sn test
Fix nexthostname
Fix concurrent_get_or_create in the position discovery plugin
Merge branch 'assets' of git://github.com/allegro/ralph into assets
Merge pull request #350 from deshipu/master

Patches
nexthostname command - fix
Merge branch 'assets' of git://github.com/allegro/ralph into assets
Re-attach IP address after cleaning a host
IBM Blade center concurrency fixes
pep8
Merge pull request #352 from vi4m/ibm_fix

IBM Blade center concurrency fixes
Merge pull request #349 from andrzej-jankowski/master

puppet plugin - minor fixes
PEP 8
TypeError in deployment.plugins.reboot fixed
Merge github.com:allegro/ralph
Merge pull request #353 from andrzej-jankowski/master

TypeError in deployment.plugins.reboot fixed
Don't try to repeat the clean plugin