include revision in indexes

--HG--
branch : versioning
use an article object to fetch slices

--HG--
branch : versioning
be aware if revision

--HG--
branch : versioning
article is revision aware

--HG--
branch : versioning
open persistence a bit

--HG--
branch : versioning
handle article deletion in a reversable way

--HG--
branch : versioning
increase revision when the type changes

--HG--
branch : versioning
add test for slice service

--HG--
branch : versioning
seem to handle the whole article and content versioning now

--HG--
branch : versioning
merge with default

--HG--
branch : versioning
clean up slices on language delete

--HG--
branch : versioning
handle explicit revisions of article

--HG--
branch : versioning
let the uni test match the new api

--HG--
branch : versioning
get the correct article from a slice

--HG--
branch : versioning
make the online status revision aware

--HG--
branch : versioning
fix deleted article service

--HG--
branch : versioning
group latest deleted articles by clang first

--HG--
branch : versioning
fix article soft delete

--HG--
branch : versioning
1st step of article service refactoring

--HG--
branch : versioning
refactor findById to findBaPK for all Article stuff

--HG--
branch : versioning