irstv/H2GIS — pull request #337 by agouge (2014-05-28 12:37:34+00:00)
Title: Allow mixed LINESTRINGS,MULTILINESTRINGS ST_Graph

Before, `ST_Graph` raised an exception if the input table contained both
`LINESTRINGS` and `MULTILINESTRINGS`. Now we allow for this possibility.

If we find a Geometry other than LINESTRING or MULTILINESTRING, we raise an
exception with the type.