Bug#712979: debbugs: please add REST api

[Pavlos]

More or less I would like to be able to search for bugs with the same
parameters you can define here http://www.debian.org/Bugs/
So search by bug number, package name, maintainer, severity, submitters
name, bug status, data (to get newest bugs). If i can also add an
exclude/include argument as in the page then even better. :)
​I think that should be ok for now.