powerline*: Release 1.3.1
Record powerline move to its own organization
Use https:// for github homepage URLs, not http://
Merge pull request #20 from ZyX-I/powerline-release-1.3.1

app-misc/powerline: 1.3.1 bump
Merge pull request #21 from ZyX-I/powerline-move

app-misc/powerline: URLs updated
media-fonts/powerline-fonts: URLs simplified