Upload multiple files with wildcard(regex).

[harshitaneja]

Right now if we use wildcards for filename it uploads the first match, instead of all the files. If the directory has two files some.json and some.csv and you use-
slackcat --channel somechannel some.*
It would only upload some.csv and terminate.

[harshitaneja]

Closed by mistake.

[Hackdwerg]

Bump