Merge branch 'RELEASE-3.1-LOT' of https://github.com/pjolszewski/aperte-workflow-core into RELEASE-3.1-LOT
Merge branch 'RELEASE-3.1-LOT' of https://github.com/maciejpawlak/aperte-workflow-core into RELEASE-3.1-LOT

Conflicts:
	plugins/base-widgets/src/main/java/pl/net/bluesoft/rnd/processtool/ui/basewidgets/steps/SetVariablesStep.java
Merge branch 'RELEASE-3.1-LOT' of https://github.com/maciejpawlak/aperte-workflow-core into RELEASE-3.1-LOT

Conflicts:
	plugins/base-widgets/src/main/java/pl/net/bluesoft/rnd/processtool/ui/basewidgets/steps/SetVariablesStep.java
Brakujace tlumaczenia
Merge branch 'RELEASE-3.1-LOT' of https://github.com/rsurowiecki/aperte-workflow-core into RELEASE-3.1-LOT
Files repository plugin refactoring
Merge branch 'RELEASE-3.1-LOT' of https://github.com/maciejpawlak/aperte-workflow-core into RELEASE-3.1-LOT
Removed unnecessary properties from resource bundle
Files repository plugin refactoring