[kde-base/libkscreen] add EGIT_BRANCH

This fixes a regression introduced by 500fc8f89fc3951ca0581c347ef5130a3a171ced.
[eclass] Plasma 5.1.0.1 SRC_URI support.
[profiles/package.mask] Mask Plasma 5.1.0.1
[kde-base] Add Plasma 5.1.0.1
[kde-base] Add Plasma 5.1.0.1 ebuilds.
[kde-base/oxygen-fonts] Add 5.1 branch live ebuild.

Package-Manager: portage-2.2.12
[kde-base] Remove Plasma 5.0.2, 5.0.95, and 5.1.0.
[profile/package.mask] Cleanup old masks.
[kde-frameworks/kf-env] Restore keywords.

Package-Manager: portage-2.2.12
[kde-frameworks/kf-env] Remove old.

Package-Manager: portage-2.2.12
[sets] Update for Plasma 5.1
[Documentation] Update keywords for Plasma 5.1
[dev-libs/libdbusmenu-qt] In portage.

Package-Manager: portage-2.2.12
[dev-libs/libdbusmenu-qt] Sync KEYWORDS with portage.

Package-Manager: portage-2.2.12
[kde-base/oxygen-fonts] Fix S for unusual release.

Package-Manager: portage-2.2.12
[kde-base/systemsettings] Remanifest.

Previous tarball was corrupted.

Package-Manager: portage-2.2.12
[eclass] Add hack for Plasma 5.1.0.1 unusual release.
[eclass] Extend hack.
[eclass] Fix extended hack.
[eclass] Further 5.1.0.1 madness.