spacemacs-layouts: erc doesn't play well with layouts

[choppsv1]

When creating a layout and then opening an erc connection, the erc buffers land in the default layout and not in the currently viewed one.

[StreakyCobra]

Related to #4517 probably.

[TheBB]

Er, we can do a bit better.

The buffers should be added to a named perspective. ERC in particular tends to open buffers at the most inconvenient times and the current persp might not be the ERC persp.

Secondly, the function should be added to erc-mode-hook and not erc-mode. o_O

[choppsv1]

yes, the hook is wrong, but it's also only gets run if you open that defined layout. I define my own [i]rc layout. I think we need to be adding this hook somewhere else.

[choppsv1]

IOW what TheBB said, plus add somewhere else :)

[d12frosted]

Fixed with released of Spacemacs v0.200. Let us know if you still have any problems with this issue.