Log Message:
Update to alpine-1.10nb1
The Maildir patch was altered on the master server without changing the
URL, so we have to alter DIST_SUBDIR, which affects the main distfile
as well. Emailed author to see if putting up versioned patchfile URLs is
feasible
The change in the Maildir patch:
- Fixed a bug which made Alpine not to delete folders correctly in
  a #mc/ collection.