[MERGE] Output refactoring and XML integration into bzrlib

[Guillermo Gonzalez]

Aaron Bentley wrote:
> 
> Another thing, if you're going to introduce a machine-readable output
> format, a description of that format would be useful.
> 
> Aaron
Aaron, 
   I already have a dtd and xsd for log --xml output (and working in the
status dtd/xsd). But don't known if dtd and/or xsd is enough. What would
you recommend, dtd and/or xsd? or maybe another standard?.

Regards,

Guillermo Gonzalez