Ticket #124 (new feature request)

Description

The current methodology for defining turn restrictions basically limits you to one restriction per record using the rule column. If you want to add multiple restrictions for a given edge you have to duplication the edge for each additional restriction and then add a single restriction to each new edge. This also requires that you then order by gid to group the restrictions together when you fetch the edges.

A better methodology is needed for describing this restrictions. For example, rule could be:

rule 1           rule 2          rule N
--------------   --------------  ...
<edge>[,<edge>][;<edge>[,<edge>]]*

this would allow any of the following rows

4
14,4
4;12
14,4;12
etc