[v3] add album.py

[neon-ninja]

A simple plugin that makes it easier to get the album for a hangout

[gurumadmat]

Tried your plugin, doesn't seem to work. sent several images from mobile and desktop client.
Keep getting following response:
'Send an image first'

[neon-ninja]

@gurumadmat give 511b929 a try, had a look through my bot logs and saw that the desired dict might be under the key data_. Probably varies due to client, I only tested with the chrome plugin.

[pleasantone]

This seems incredibly fragile and likely to break at the slightest change in the protocol... -- album = a.embed_item.data['27639957'][0][0]

•    album = album[0:album.index('?')]
  

[neon-ninja]

@pleasantone true, but it's also the only way to do it. It only needs to work once, then the result is cached forever in memory.json.

[neon-ninja]

pleasantone called it, upgrading to v3.0 breaks this plugin. Format is now: embed_item.plus_photo.thumbnail.url

[endofline]

i like to request this pr to be closed and reissued to v3 branch (with title prefixed with [v3]), as committing this to staging - being v2 - will break stuff bigly ;P

[neon-ninja]

@endofline no need to recreate the PR, base branch/title can be edited

[endofline]

In the interest of time and focus, I will defer any review, testing and merge of this PR until after a v3 migration. Feel free to add to it though, or publish more comprehensive documentation as markup inside the pr body.