Original DEBUG() and DEBUGF() macros renamed to _DEBUG() and _DEBUGF()
New DEBUG() and DEBUGF() macros, first argument is flagname
New DEBUGF2(foo, bar, ...) macro does if(config.debug.foo||config.debug.bar) test
Replace almost all config.debug.xxx references to IF_DEBUG(xxx)
A convenience to re-use an existing manifest, instead of having
to extract the manifest, erase some fields, then pass the result
back into the 'rhizome add file' command
Distinguish between fatal and user-supplied-input errors, return
error descriptive text in a strbuf to allow dynamic content, apply
user-supplied field assgnments/deletions _after_ copying existing
manifest fields, use exit status 4 (invalid manifest) when applying
journal append to a non-journal or vice versa
Put manifest creation logic into new rhizome_bundle_add_file()
function, in preparation for implementing new HTTP POST
/restful/rhizome/append request
Several 'rhizomeops' tests fail
Now a new manifest can be formed, and an existing manifest modified, by
giving "field=value" or "!field" command-line arguments at the end of
the "rhizome add file" command (after the <bsk> argument).
This makes it easier to script rhizome operations.
