[TW-240] Make column width configurable

_Dirk Deimeke on 2013-04-10T13:47:51Z says:_

With the new calculation of widths in reports the longest column influences the width of the report.

This leads to a misunderstanding. The width of a report is not limited. If one of the columns to be displayed is "description" you can never say how the report looks like.

The feature request is about adding ":length" to a column to show the maximum width before a line breaks.

Example:

Currently a report looks similar to this.

report.x.colums = id,project,priority,due,tags,desccription

A new definitions could be

report.x.colums = id,project,priority,due,tags,desccription:80

Which results in a line break after 80 characters in descriptions' column.

In case the value ends with a colon, the column is cut, without line breaks at 80 characters.

report.x.colums = id,project,priority,due,tags,desccription:80: