h2o: Update version from 2.2.2 to 2.2.4

Version 2.2.4 was released in December 2017, and contains some security
fixes, and improvements [1].

H2O version 2.2.3
-----------------

This is a bug-fix release of the 2.2 series, including two vulnerability
fixes.

*   [security fix][http1] fix crash when receiving request with invalid framing CVE-2017-10868 #1459 (Frederik Deweerdt)
*   [security fix][proxy] fix stack overflow when sending huge request body to upstream CVE-2017-10869 #1460 (Frederik Deweerdt)
*   [core] disable buffering of stdout, stderr #1347 (Yannick Koechlin)
*   [expires] fix incorrect header emitted when units: month or year were used #1406 (Frederik Deweerdt)
*   [fastcgi] never return 304 if the file is a dynamic handler #1385 (Kazuho Oku)
*   [mime] flush all existing mapping when file.mime.settypes is used #1416 (Ichito Nagata)
*   [mruby] update mruby and modules #1320 #1338 #1413
*   [mruby] expose SERVER_PROTOCOL #1353 (Frederik Deweerdt)
*   [mruby] properly handle content-less response #1430 (Ichito Nagata)
*   [proxy] do not drop the Date request header #1408 (Ichito Nagata)
*   [ssl] fix deadlock during lazy initialzation #1425 (Apollon Oikonomopoulos)
*   [ssl] fix epoll-related crashes on OSCP updates #1427 (Apollon Oikonomopoulos)
*   [ssl] avoid spurious session ticket renewals #1444 (Apollon Oikonomopoulos)
*   [websocket] fix bug that might drop the first websocket frame #1276 (wuhanck)
*   [libh2o] clear OpenSSL's error queue before using it #1448 (Apollon Oikonomopoulos)
*   [doc] add documentation of duration-stats #1306 (Frederik Deweerdt)
*   [misc] fix build issues on OpenIndiana #1300 (David Carlier)
*   [misc] build on platforms without 64-bit atomics #1433 (Apollon Oikonomopoulos)

H2O version 2.2.4
-----------------

This is a bug-fix release of the 2.2 series, including two vulnerability
fixes.

*   [security fix][access-log][ssl] fix crash when logging TLS 1.3 properties CVE-2017-10872 #1543 (MITSUNARI Shigeo)
*   [security fix][http2] fix crash when handling malformed HTTP/2 request CVE-2017-10908 #1544 (Kazuho Oku)
*   [access-log][compress] %b should log the amount of data sent after compression #1478 (Ichito Nagata)
*   [fastcgi][misc] respect H2O_PERL environment variable in share/h2o/setuidgid #1518 (Kazuho Oku)
*   [mime] fix Opus mimetype #1522 (Alex)
*   [mruby] fix runtime issue that prevents a closed variable from getting updated #1464 (Tatsushi Demachi)
*   [mruby] keep PATH_INFO undecoded #1480 (Ichito Nagata)
*   [mruby] fix keepalive not being used when the response to http_request is directly returned #1489 (Ichito Nagata)
*   [mruby] fix offset overflow of SCRIPT_INFO and PATH_INFO #1502 (Ichito Nagata)
*   [proxy][ssl] fix pointer corruption when connecting to origin via https (big-endian only) #1475 (Kazuho Oku)
*   [proxy] omit network I/O when handling internal redirect between hosts mapped to different ports #1498 (Ichito Nagata)
*   [ssl] fix crash on s390 (and possibly on other big-endian machines) #1474 (Apollon Oikonomopoulos)
*   [websocket] do not send upgrade header twice #1463 (Yamagishi Kazutoshi)

[1] https://github.com/h2o/h2o/releases

h2o.be0

@@ -1,6 +1,6 @@
 #!/usr/bin/env beesh
 
-# BEE_VERSION h2o-2.2.2-0
+# BEE_VERSION h2o-2.2.4-0
 
 ## this file was created by bee init and should be executed to build a
 ## bee-package. (Additional hints are located at the end of this file.)