add config-file 1.2
add xtmpl 0.9
add higlo 0.2
add stog 0.11.0
add stog-rdf 0.11.0
add stog-writing 0.11.0
add tags for stog, stog-rdf and stog-writing
Merge branch 'master' of https://github.com/OCamlPro/opam-repository
cannot build stog 0.9 with xtmpl 0.8 and above
add constraint xtmpl<0.8 stog stog 0.4-0.8
stog-rdf and stog-writing now have stricter dependencies on stog version
Merge pull request #1807 from zoggy/master

Add new versions: config-file 1.2, xtmpl 0.9, higlo 0.2, stog, stog-writing and stog-rdf 0.11.0