Small documentation fixes.


git-svn-id: https://svn.osgeo.org/gdal/trunk@27737 f0d54148-0727-0410-94bb-9a71ac55c965
MITAB: add support for CreateField() on non empty file, AlterFieldDefn() and DeleteField() for .TAB (#5652)

git-svn-id: https://svn.osgeo.org/gdal/trunk@27738 f0d54148-0727-0410-94bb-9a71ac55c965
MITAB: fix bugs found by Coverity (#5652)

git-svn-id: https://svn.osgeo.org/gdal/trunk@27740 f0d54148-0727-0410-94bb-9a71ac55c965
JPEG: report non-fatal libjpeg errors as CE_Warning (or CE_Failure if GDAL_ERROR_ON_LIBJPEG_WARNING = TRUE) (#5667)

git-svn-id: https://svn.osgeo.org/gdal/trunk@27742 f0d54148-0727-0410-94bb-9a71ac55c965
Merge branch 'trunk' into trunk_travis_macosx