Retraverse#2

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mauroreverberi wants to merge 15 commits intodelixfe:masterfrom

mauroreverberi:retraverse

Commits on Aug 29, 2012

added unit test 'Nested grouping finds items in observableArrays - observable'
delixfe
committed

Commits on Aug 30, 2012

extended group with a new option live
delixfe
committed
Merge branch 'master' into observableArrays
delixfe
committed

Commits on Sep 1, 2012

grouping ignores items nested in destroyed objects
delixfe
committed
validateables were not cleared before retraversing the viewmodel
delixfe
committed
destroyed handling is now also working for observable groupings (when using the live option)
delixfe
committed

Commits on Nov 22, 2012

Added missing semicolon.
delixfe
committed

Commits on Nov 23, 2012

Commits on Dec 3, 2012

Merge branch 'master' into observableArrays-destroyed
delixfe
committed

Commits on Dec 23, 2012

Commits on Jun 28, 2013

Retraverse function added to observable group result
Mauro Reverberi
committed
Retraverse Validation Test bugfix
Mauro Reverberi
committed