Fixing segfault for POST requests when no content-type is set. See issue #4650.
Resolving #4638.
Update symbol references when removing a symbol (#4656)
Handle Content-Type HTTP headers with a charset appended.

The fix for #4585 in cgiutil.c is also needed in mapows.c to handle Content-Type HTTP headers with a charset appended.
Small fix to shpxy in templates
Merge branch 'branch-6-2-issue4650' into branch-6-2

Conflicts:
	mapows.c
Fix segfault in ms_newMapObjFromString (PHP/MapScript)
Replace `strlcpy` with `strncpy` in `msIO_stripStdoutBufferContentType()`

The use of `strlcpy` was producing *uninitialised value* errors in
valgrind.  It appears this was due to the fact that `strlcpy` expects
the source string to be null terminated which is not always the case
in this context.
Install postgresql-9.1-postgis-2.0-scripts in Travis due to packaging change of postgis
updated msautotest to latest branch-6-2 revision
solved symbol size trunc bug thanks to tbonfort
Merge pull request #4699 from luipir/branch-6-2

fix integer rounding on sld se:size (#4699)
printed color alpha value in map file
Add support for shapefiles with uppercase extension on Linux (#4712)
Merge pull request #4707 from luipir/branch-6-2

print color alpha value in map file writer
avoid rendering symbols with 0 scale (#4654)

sending in symbols with a 0 zero scale seems to mess up cairo, even
though our use of cairo_save/cairo_restore should have taken care
of this.
fix crashes on error'd WCS getcoverage requests (#4714)

initialise msWCSGetCoverageMetadata20 to NULL to avoid memory failures
on error
Merge pull request #4714 from tbonfort/b4714-wcs-mem-crash

Fix crashes on failed WCS request (#4714)
Correcting version attribute in WCS exceptions (#4717).
update msautotest submodule