1.0.0b6
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- fix recursive import issue resulting in a superflous KeyError 
- default to __version__ '0' and not set __loader__ or __path__ at all if it
  doesn't exist on the underlying init module

1.0.0b5
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- fixed MANIFEST.in
- also transfer __loader__ attribute (thanks Ralf Schmitt) 
- compat fix for BPython 

1.0.0b3 (compared to 1.0.0b2)
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- added special __onfirstaccess__ attribute whose value will 
  be called on the first attribute access of an apimodule. 

