Installing Using nimble install Fails
I just attempted to install Aporia via nimble and received the following error:

```
Hint: CustomStatusBar [Processing]
CustomStatusBar.nim(41, 24) Error: undeclared identifier: 'False'
FAILURE: Execution failed with exit code 1
```

This is all on a completely fresh nim/nimble install.

Also, the command shown on the readme no longer works. I needed to change `aporia#head` to `aporia` in order to get nimble to begin the installation (thus, the command which was run was `nimble install aporia`).
