ide: making morphic accessors knownGlobals
codeditor: undo/redo direct methods + mergeUndoOf(action)
commandlineinterface: history for run shell command on region
commandlineinterface: merge undo info of inserted shell output snippets

Conflicts:
	core/lively/ide/commands/default.js
core: lively.Point.fromTuple (accepts two-elem array)
ide: first version of JavaScriptWorkspace
config: defaultWorkspaceExtent
CodeEditor: bugfix for mergeUndo