1) Added localization support for conference tree.
2) Added conf tree menu actions.
3) Added selection listener for tree.
Merge branch 'master' of https://github.com/Ivan-Zhukau/conforg-desktop

Conflicts:
	net.ostis.confman.services/src/net/ostis/confman/services/ConferenceService.java
	net.ostis.confman.services/src/net/ostis/confman/services/ConferenceServiceImpl.java
	net.ostis.confman.services/src/net/ostis/confman/services/RegistrationService.java
	net.ostis.confman.services/src/net/ostis/confman/services/RegistrationServiceImpl.java
	net.ostis.confman.ui/resourses/MessagesBundle.properties
	net.ostis.confman.ui/resourses/MessagesBundle_en_GB.properties
	net.ostis.confman.ui/resourses/MessagesBundle_ru_RU.properties
	net.ostis.confman.ui/src/net/ostis/confman/ui/conference/parts/ReportEditorPart.java
	net.ostis.confman.ui/src/net/ostis/confman/ui/conference/parts/SectionEditorPart.java
Merge branch 'master' of https://github.com/Ivan-Zhukau/conforg-desktop