Add COMPOUNDCURVE in MULTICURVE support for ST_CurveToLine (#2424)

git-svn-id: http://svn.osgeo.org/postgis/branches/2.0@11786 b70326c6-7e19-0410-871a-916f4a2858ee
Fix short allocation of edge to curves store (#2425)

git-svn-id: http://svn.osgeo.org/postgis/branches/2.0@11788 b70326c6-7e19-0410-871a-916f4a2858ee