Support more than 510 shortcuts

[sloanlance]

Increase the number of supported shortcuts from 510 to a much larger number. For example, at least 1285. 😉

I wanted to load my copy of Auto Text Expander with all of the GitHub emojicodes, but then I realized it wouldn't support that many.

You might be interested in this GitHub emojicode file I came up with: https://goo.gl/S1Xdeu

[Soninmyeyes]

I second this!

Having started to use this extension a couple of days ago, I've used up 6.27% of the shortcuts, but only 0.75% of the available storage. At this rate, I wouldn't max out storage until my 4277th shortcut.

While that might be a bit extreme, there's certainly room for expansion, at least in terms of capacity.