UML Class Diagram
creating children from parents context menu
added enums
links reconnect to children fixed
properties
fixed creating too much elements from menu
whitespaces and translation
class diagram rename
access type enum; showing access type for fields
Merge branch 'master' of https://github.com/qreal/qreal into class_diagram

Conflicts:
	qrgui/umllib/element.h
Merge branch 'master' of https://github.com/qreal/qreal into class_diagram

Conflicts:
	qrxc/graphicType.cpp
added linkers for class diagram; bpmn is commented in plugins.pro
Merge pull request #961 from Ashatta/class_diagram

Wanna-be-UML диаграмма классов