chore, guard LIBS variable against modifications through AC_CHECK_LIB
chore, also save the value of LIBS into libev_LIBS if empty
chore, actually link gandalfd to libev
fix, PEBKAC, spell ac cache var for ev_loop_new in libev correctly
chore, spell HAVE_LIBEV properly and consistently
hygiene, don't preset libev_LIBS, AC_CHECK_LIB will do that for us
chore, issue a warning when libev could not be found right at configure time
Merge branch 'bld/chn'

* bld/chn:
  chore, issue a warning when libev could not be found right at configure time
  hygiene, don't preset libev_LIBS, AC_CHECK_LIB will do that for us
  chore, spell HAVE_LIBEV properly and consistently
  fix, PEBKAC, spell ac cache var for ev_loop_new in libev correctly
  chore, actually link gandalfd to libev
  chore, also save the value of LIBS into libev_LIBS if empty
  chore, guard LIBS variable against modifications through AC_CHECK_LIB
minor, send Host HTTP header in gandapi to gandalfd
Merge branch 'core/cliapi'

* core/cliapi:
  minor, send Host HTTP header in gandapi to gandalfd
minor, extend httpd_req object by data word (pointing to payload)
minor, run user's workf() in a simple loop in sock_data_cb()

Still Todo:
Keep unfinished remnants of the buffer around and have read()
append to it on the next run.
Merge branch 'core/httpd'

* core/httpd:
  minor, run user's workf() in a simple loop in sock_data_cb()
  minor, extend httpd_req object by data word (pointing to payload)
minor, collapse callbacks for matlab into one
minor, use send() (instead of write()) to catch SIGPIPE when writing
minor, transparently reopen the socket upon SIGPIPE in gand_send()
minor, import interning system from glod
minor, omit valflav array from gand_get_series() in gandapi
minor, return struct in matlab api's gand_get_series()
Merge branch 'core/matapi'

* core/matapi:
  minor, return struct in matlab api's gand_get_series()
  minor, omit valflav array from gand_get_series() in gandapi
  minor, import interning system from glod
  minor, transparently reopen the socket upon SIGPIPE in gand_send()
  minor, use send() (instead of write()) to catch SIGPIPE when writing
  minor, collapse callbacks for matlab into one