Merge pull request #341 from kula1922/hotfix/gui-bugs

Gui bugs
recalculating performance improvement - run as separated jobs for each day
fix cost card - show only accepted costs & accept forecast param
fix for virtual collect plugin - manufacturer uniqueness
Merge pull request #345 from mkurek/fix/virtual-model

fix for virtual collect plugin - manufacturer uniqueness
Merge pull request #342 from mkurek/fix/card-cost-accepted-costs

fix cost card - show only accepted costs & accept forecast param
improve collector performance
Merge pull request #344 from mkurek/fix/reports-performance

Fix/reports performance
Prepare to release 3.0.0-beta1

- Prepare to release 3.0.0-beta1