pkgsrc changes:
- switch to Module::Install::Bundled
Upstream changes:
1.01 Wed 16 Jun 2010
- Upgraded to Module::Install::DSL 0.99
- warn rather than die for objects that don't conform to our assumptions
- list tracked source line only once
- list the next caller in the stack if bless is called by the
class's new()
- add a checkpoint() status which lists new classes created (and
not destroyed) since the last call to checkpoint()
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