Monkey: new v1.5.4 release.

This patch add the new Monkey HTTP Server v1.5.4.

For more details about software changes please visit:

    http://monkey-project.com/Announcements/v1.5.4



=== Build Tests ==

This version have been tested on Yocto/Daisy based on RPM.

monkey-yocto/a617991e40bd5c3779ad7b3689f78857d3e45248

Signed-off-by: Eduardo Silva <eduardo@monkey.io>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>