* __upd__: Add `Comment()` to `diaspy.models.Post.comments` on `diaspy.models.Post...

* __upd__:  Add `Comment()` to `diaspy.models.Post.comments` on `diaspy.models.Post.comment()`
* __upd__:  Delete `Comment()` from `diaspy.models.Post.comments` on `diaspy.models.Post.delete_comment()`
* __upd__:  Update `diaspy.models.Post._data["poll"]["participation_count"]` and `diaspy.models.Post._data["poll_participation_answer_id"]` after `diaspy.models.Post.vote_poll()`
* __upd__:  Update `diaspy.models.Post._data["participation"]` on `diaspy.models.Post.subscribe()` and `diaspy.models.Post.unsubscribe()`
* __upd__:  Removed `verify` keyword from `diaspy.connection.Connection` it's methods, it's now done through `**requestKwargs`. Default is still `True`.
* __upd__:  `diaspy.streams.Stream._photoupload()` to more public method `diaspy.streams.Stream.photoupload()`
* __upd__:  Update `diaspy.models.Notification.unread` and `diaspy.models.Notification._data['unread']` on `diasply.models.Notification.mark()`

* __fix__:  Don't update `diaspy.notifications.Notifications` it's `unread_count_by_type` and `unread_count` on `diaspy.notifications.Notifications._expand()` and `diaspy.notifications.Notifications._update()` since it's already done in `diaspy.notifications.Notifications._finalize()`

* __new__:  `diaspy.streams.Generic.deletePostGuid()` deletes `Post` with given `guid` from the local stream object. (If you manualy update a post and find that it's been deleted, call this with the `guid` of the deleted `Post`)
* __new__:  `diaspy.streams.Stream.deletephoto()`
* __new__:  `diaspy.notifications.Notifications.__len__()`
* __new__:  `diaspy.notifications.Notifications.data()`
* __new__:  `diaspy.models.Comments.delete()` deletes comment by `id`.
* __new__:  `diaspy.errors.NotificationError`

Note: the current Camo check will be removed and replaced by nodeInfo soon.