Version string lost when outputting ExceptionReport XML

[tomkralidis]

When outputting service exceptions, the version string is not output in the schemaLocation attribute of ExceptionReport when pointing to the .xsd:

<ows:ExceptionReport xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ows="http://www.opengis.net/ows/1.1" version="1.0.0" xsi:schemaLocation="http://www.opengis.net/ows/1.1 http://schemas.opengis.net/ows//owsExceptionReport.xsd">

This resolves to mapowscommon.c: msOWSCommonExceptionReport. There hasn't been a change to this or calling code in months, so I'm not sure what the issue is.

[tomkralidis]

Sorta related to r7992 (== should have been !=). The version (as string) was only getting output if language wasn't defined (which, in this case, always is defined).

Cleaned this up a bit so that:

• language is always output on exception (as all calling code shall pass)
• ows_version_string is omitted in favour of fetching via msOWSGetVersionString instead

Changes made in:

• trunk (r8168)
• branch-5-2 (r8169)

All changes tested against msautotest/wxs/sos.map