dev-haskell/syb-with-class: bump up to 0.6.1.5

Package-Manager: portage-2.2.10_p15
dev-haskell/midi: bump up to 0.2.1.2

Package-Manager: portage-2.2.10_p15
app-editors/leksah: allow QC-2.7

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>