Add subclassing support#7

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abillingsley wants to merge 6 commits intorobbiehanson:masterfrom

abillingsley:master

Commits on Dec 8, 2011

implement interface for replacement class for easy subclassing
Alex Billingsley
committed
Merge pull request #1 from abillingsley/replacementClass
Alex Billingsley
committed
need to add replacementClass method to XMLElement (Additions)
Alex Billingsley
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Merge remote-tracking branch 'origin/master'
Alex Billingsley
committed
simplify replacement class by default we should just return the current class
Alex Billingsley
committed
Merge pull request #3 from abillingsley/replacementClass
Alex Billingsley
committed