Merge branch 'develop' of https://github.com/closedxml/closedxml into issue328-indexoutofrangeexception ...

# Conflicts:
#	ClosedXML_Tests/Resource/Examples/Misc/Collections.xlsx
#	ClosedXML_Tests/Resource/Examples/Misc/Formulas.xlsx
#	ClosedXML_Tests/Resource/Examples/Misc/Hyperlinks.xlsx
#	ClosedXML_Tests/Resource/Examples/PivotTables/PivotTables.xlsx
#	ClosedXML_Tests/Resource/Examples/Ranges/NamedRanges.xlsx