Related to #2313

git-svn-id: http://svn.osgeo.org/postgis/trunk@11395 b70326c6-7e19-0410-871a-916f4a2858ee
Fix implicit declaration of function 'tolower' warning

git-svn-id: http://svn.osgeo.org/postgis/trunk@11396 b70326c6-7e19-0410-871a-916f4a2858ee
Fix compiler warnings in lwgeom_functions_analytic

git-svn-id: http://svn.osgeo.org/postgis/trunk@11397 b70326c6-7e19-0410-871a-916f4a2858ee
example of a custom color map

git-svn-id: http://svn.osgeo.org/postgis/trunk@11398 b70326c6-7e19-0410-871a-916f4a2858ee
link to ST_NumBands

git-svn-id: http://svn.osgeo.org/postgis/trunk@11399 b70326c6-7e19-0410-871a-916f4a2858ee
Fix more compiler warnings

There are still some that would be nice to fix, but it's mostly
the array subscript is above array bounds one

git-svn-id: http://svn.osgeo.org/postgis/trunk@11400 b70326c6-7e19-0410-871a-916f4a2858ee