Merge pull request #168 from timfel/master

llow users to browse their private PartsBin using the PartsBin browser
lists: fix selecting inactive list item morphs
lists: fixing list (and SCB) resizing issues
lists: fixing initLayout error in lively.morphic.List
lists: auto scroll to selected item in lively.morphic.List
lists: resize list innards
changesests infrastructure
lists: show no menu when List>>getMenu is empty, use #renderFunction again
list: fix the case were inactive listItemMorphs were capturing clicks
small cleanup
more cleanup
lists: test fix
lively.morphic.List: removing redundant list state.
only list.selectedIndexes is used for holding the selection state of the list.
selection and selectedLineNo are now virtual attributes
fixing partsbinbrowser search input
lists: fixing serailized lists that have selection property (by making listItemContainer virtual)
lists: fix rednering of deserialized lists
list selection fixes
do not include selection (which is already visible) in the context menu for the list - some menu items may refer to the list, not to the selection
do not call List.renderItems with empty items, it breaks
revert last change, it's worse than before