Misago 0.31 and 0.31.1

Misago 0.31 is a maintenance release addressing broken preview function in new message editor that was introduced in 0.30 release.

This release also updates quotes color scheme, changing their color from orange into more commonly used and neutral blue.

Misago 0.31.1 released.

This release re-adds images that were mistakenly removed from Misago in 0.30 release.