bluelet: catch ECONNRESET
bluelet: catch ECONNRESET

When ncmpcpp quits after an error it causes a "connection reset by peer"
exception, also known as ECONNRESET (104) in errno terms. In Python
2 this is mapped to a `socket.error` and in Python 3 this is
  `ConnectionResetError` which is thankfully a subclass of the
  `socket.error` exception class.

ibmibmibm/beets,beetbox/beets,sampsyo/beets,beetbox/beets,sampsyo/beets,SusannaMaria/beets,jackwilsdon/beets,shamangeorge/beets,SusannaMaria/beets,ibmibmibm/beets,beetbox/beets,sampsyo/beets,jackwilsdon/beets,shamangeorge/beets,shamangeorge/beets,jackwilsdon/beets,beetbox/beets,sampsyo/beets,jackwilsdon/beets,ibmibmibm/beets,shamangeorge/beets,ibmibmibm/beets,SusannaMaria/beets,SusannaMaria/beets