MTCH missing data after Jun 30

[xyjprc]

https://robintrack.net/symbol/MTCH
The stock is still actively traded as of today.

[Ameobea]

This is due to MTCH having a split on July 1st; this causes Robinhood to produce a new internal ID for the stock, and the data becomes disassociated in my database.

This would be solved by #72, which is a high priority issue for me. Note that Robintrack is recording this data and I'll be able to correct the problem and join it with the pre-split data, I just have to create an automated solution to do that.