Slightly simplify a loop setting projection parameters for gdal warp

git-svn-id: http://svn.osgeo.org/postgis/trunk@12929 b70326c6-7e19-0410-871a-916f4a2858ee
#2906 document new enhancement

git-svn-id: http://svn.osgeo.org/postgis/trunk@12930 b70326c6-7e19-0410-871a-916f4a2858ee
Add availability info for {Add,Drop}OverviewConstraints

git-svn-id: http://svn.osgeo.org/postgis/trunk@12933 b70326c6-7e19-0410-871a-916f4a2858ee
Add documentation for {Add,Drop}OverviewConstraints (#2824)

git-svn-id: http://svn.osgeo.org/postgis/trunk@12934 b70326c6-7e19-0410-871a-916f4a2858ee
Fix warnings in docs image generator build

Print a warning on system call failures

git-svn-id: http://svn.osgeo.org/postgis/trunk@12937 b70326c6-7e19-0410-871a-916f4a2858ee
Fix typo in DropOverviewConstraints doc

git-svn-id: http://svn.osgeo.org/postgis/trunk@12940 b70326c6-7e19-0410-871a-916f4a2858ee
Implement ST_Retile and ST_CreateRasterOverview (#2247)

Includes testcases