Matus Goljer 3fe561bc93 Add completion for packages in update subcommand
This patch adds completion for the update subcommand, that is, when the
user types in `composer update <tab>`.

The code depends on python for the json parsing.  I'm not sure if this
is appropriate or if there is a fish-native way to parse json data.

Use suggestions for remove subcommand.

Add suggestions for why, why-not and depends.

Add why/why-not suggestion.
2017-08-17 10:28:14 -07:00
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