Davical version 1.1.0 has now been released: http://debian.mcmillan.net.nz/packages/davical/davical-1.1.0.tar.gz (Current ebuild version is 1.0.2-r1)
+ 26 Jun 2012; Patrick Lauer <patrick@gentoo.org> +davical-1.1.0.ebuild: + Bump for #423603