ManualAspect & PointerList editor widgets + logic

and the necessary updates of related client codes
Merge branch 'master' into develop-r

Conflicts:
	client/js/client.js
Merge branch 'master' into develop-r
Merge branch 'master' into develop-r

Conflicts:
	client/js/WebGME.js
Merge branch 'master' into develop-r
fix saving undisplayable connections to delayedConnections list
bugfix
bugfix and check delayedConnections against UPDATED and UNLOADED gmdIDs
drag&drop between sheets
bugfix: switch to new tab on tab creation
tab rename enabled/disabled per tab

implement tab rename feature in manual aspect
implement onTabTitleChanged
implement onTabsSorted

support onTabsSorted in ManualAspect
implement onTabDeleteClicked

support tab deletion in ManualAspect
refactor onTabAddClicked  into DiagramDesignerWidgetMultiTabMemberListControllerBase
disable connection drawing support in DiagramDesignerWidget

disable connection drawing in ManualAspect / PointerListEditor mode by
default
log level fixes
refactor default visualizer settings
bugfix
eliminate onOneEvent from addUI

now users have to pass a callback function and that will be called
instead of onEvent / onOneEvent