Web: Added an Open Link In External Browser context menu option - fixes #1017
Arch: Hide/show windows together with their parents - fixes #1733
fixes #0001422: Subclass Exception

inherit Base.FreeCADError form RuntimeError
inherit Part.OCCError from Base.FreeCADError
inherit OCCDomainError from Part.OCCError
inherit OCCRangeError from Part.OCCError
inherit OCCConstructionError from OCCDomainError
inherit OCCDimensionError from OCCDomainError
Added PY_CATCH_OCC macro
replace PyExc_Exception
use FreeCADError in makeWireString
catch exception in BSplineCurve.increasedegree
removed catch (...) in Drawing

which discarded type information when rethrowing base type
issue #1700 replace PyExc_Exception
split the revision information

to a number for those commits common with the blessed master and a number for
those ahead of the current master