Allow to retweet to @ideedarticles with !idéert

Summary:
Sometimes, there is content posted on another Twitter account
valuable to retweet on @ideedarticles account.

!idéert <URL>
!idéert <status number>

Dedicated to @FRWPKumkum.

Test Plan:
Retweet query has been tested with the following tweet:
https://twitter.com/FRWPKumkum/status/809008057724403713

Reviewers: dereckson

Subscribers: FRWPKumkum, xcombelle

Differential Revision: https://devcentral.nasqueron.org/D748