I have found a small error in the w3af package, which is easy to fix if any other runs into it.
If you find an error in the output from running w3af_console in script mode about the plugins/discovery/oHmap/known.servers/mbedthis-appweb-2.4.0.juniper-srx100 having a syntax error, it is becurse it has been written on a dos / windows machine, and have not been converted to a unix format, so the fix is:
[root@[MASKED] ~]# dos2unix /usr/share/w3af/plugins/discovery/oHmap/known.servers/mbedthis-appweb-2.4.0.juniper-srx100
dos2unix: converting file /usr/share/w3af/plugins/discovery/oHmap/known.servers/mbedthis-appweb-2.4.0.juniper-srx100 to UNIX format ...
If u dont have dos2unix installed type the following:
[root@[MASKED] ~]# yum install dos2unix -y