CUSTOM: OpenOffice 3.1.1 sometimes SIGSEGV on Debian stable.

On customer environment at startup when trying to get the list of filters and
Cloudooo ends up being not reachable at all, so implement retry for such cases.

0  0x00007ffff5ab6265 in uno_getIdOfCurrentThread () from /opt/openoffice.org3/basis-link/program/../ure-link/lib/libuno_cppu.so.3
1  0x00007ffff071c20c in ?? () from /opt/openoffice.org/ure/lib/liburp_uno.so
2  0x00007ffff0725775 in ?? () from /opt/openoffice.org/ure/lib/liburp_uno.so
3  0x00007ffff0725898 in ?? () from /opt/openoffice.org/ure/lib/liburp_uno.so
4  0x00007ffff0715f2a in ?? () from /opt/openoffice.org/ure/lib/liburp_uno.so
5  0x00007ffff5405c18 in ?? () from /opt/openoffice.org3/basis-link/program/../ure-link/lib/libuno_sal.so.3
6  0x00007ffff781a0a4 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
7  0x00007ffff6e4704d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

cloudooo/handler/ooo/mimemapper.py

@@ -119,10 +119,17 @@ class MimeMapper(object):
             "--hostname=%s" % hostname,
             "--port=%s" % port]
 
-    process = Popen(command, stdout=PIPE, stderr=STDOUT, close_fds=True)
-    stdout, stderr = process.communicate()
-    if process.returncode:
+    import time
+    for _ in range(20):
+      process = Popen(command, stdout=PIPE, stderr=STDOUT, close_fds=True)
+      stdout, stderr = process.communicate()
+      if process.returncode == 0:
+        break
+
+      time.sleep(2)
+    else:
       raise ValueError(stdout)
+
     filter_dict, type_dict = json.loads(stdout)
 
     ooo_disable_filter_name_list = kw.get("ooo_disable_filter_name_list") or [] + [