Release 1.10.2

New stable version; since 1.10.1:

• improve unit tests
• fix threading issue with file-based logging
• re-enable --after option for mu cfind
• allow extracting message-parts from message (mu extract)
• allow using relative message paths (view/extract/verify)

Mu4e:

• by default, don't reuse frame with composing in new frame
• allow for disabling global modeline items
• create random name for newly detached views
• documentation update