Description of problem: Field for hostname has to be at least 15 characters long. It is common that host is named on ip address and this should fit in the host name field in heatmap report.
Moved to 4.0 since we have to resize the report to resolve this.
Moving from 4.0 alpha to 4.0 beta since 4.0 alpha has been already released and bug is not ON_QA.
Removing support for reports in 4.0. Will reopen if relevant.