The old path for zmq library is no more valid for zmq version 4.1.5.
It has been updated in all Makefile.
The README has been updated with more details on installation of
tango demons.

The name of the MySQL daemon is in the variable MYSQL_DAEMON.
By default it is set to mysqld, but if your system uses
a different name for the MySQL daemon, change it as you do
for the MYSQL_USER and MYSQL_PASSWORD variables.

The tango-databaseds.service and tango-starter.service files are
added in the tango_demons directory.
The README is updated with the installation instructions for
the tango demons.