remove old webdav package for which upstream has disappeared
update netamqp url
update hydro url
correct cache upstream url
Merge pull request #505 from mirage/master

fix upstream URLs
core suite 109.13.00-rc1
biocaml.0.2.0: use opam's `make` variable
mark liquidsoap gui as optional
Merge pull request #508 from smondet/fix_biocaml_020_make

biocaml.0.2.0: use opam's `make` variable
Merge pull request #509 from mirage/master

liquidsoap jenkins fix
final 109.13.00 release of the core suite
Merge pull request #506 from janestreet/core-109.13.00

core suite 109.13.00-rc1
fix dypgen installation directory
fix dypgen installation directory
Merge pull request #511 from zoggy/master

Fix installation of dypgen library
Build native version of Buddy bindings in addition the the bytecode version.
Merge pull request #513 from aziem/ocaml-buddy

Build native version of Buddy bindings in addition the the bytecode vers...
Fix dependencies and installation of opam2web
Add opam-lib 0.9.6
dependency fixes