Log Message:
Update gwenview to 1.3.1.  From maintainer Ian Zagorskih in PR 32134

The first bug fix release of Gwenview, version 1.3.1, is out.

This version contains the following fixes:

    * Make sure Gwenview libs do not require an executable stack.
      (Patch by Christopher Martin)
    * PNG loader has been fixed to pass PNG gamma tests from W3C.
      (Patch by Christopher Martin)
    * Fix compilation with GCC 4.1.
    * Fix MMX configure check with GCC 4.x.
    * Fix a bug which could lead to truncated images when saving to
	non-local URLs.