melpa-packages: 2016-10-17

Removals:
- aria2 :: Repository has been removed, recipe not yet updated, melpa issue opened
- aurora-theme :: Repository has been removed
- go-guru :: Code has moved, recipe not yet updated, melpa issue opened
- hipster-theme :: Repository has been removed
- mozc :: Repository doesn't clone
- puml-mode :: Removed in favor of plantuml-mode
- visible-mark :: Repository has been removed, recipe not yet updated, melpa issue opened
- xah-math-input :: Repository has a problem on disk, recipe not yet updated, melpa issue opened