Added DateTimeWidget
Merge branch 'master' of https://github.com/Ivan-Zhukau/conforg-desktop

Conflicts:
	net.ostis.confman.ui/src/net/ostis/confman/ui/common/component/DateChooserField.java
	net.ostis.confman.ui/src/net/ostis/confman/ui/conference/parts/DateTimeWidget.java
	net.ostis.confman.ui/src/net/ostis/confman/ui/conference/parts/ReportEditorPart.java