Properly implementing decimal type.
Providing a nicer message.

Conflicts:
	comtypes/tools/codegenerator.py
Disable assertions when the size and alignment are known to be wrong.

Conflicts:
	comtypes/tools/codegenerator.py
Merge remote-tracking branch 'origin/master' into fix-query-service
Merge pull request #23 from enthought/fix-query-service

Fix 64-bit typelib issues on 64-bit python