[mutter] (12 commits) Non-fast-forward update to branch wip/carlosg/coverity-fixes

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/coverity-fixes' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  3298d34... core: Drop code to do edge resistance on timeouts
  0c88ccb... compositor: Remove dead code
  3f74c6e... cogl: Fix broken check for COGL_DISABLE_GL_EXTENSION envvar
  50c074c... clutter: Turn warning into assert
  d4c5244... backends/x11: Fix off by one in debug output
  cdd4a77... cogl: Plug GString leak
  ba2d7cd... x11: Drop fallback on ~/.mutter paths
  59b35ee... cogl: Plug possible GString leaks
  f5f734e... cogl: Plug leak on error path
  892905a... wayland: Plug leak in error condition
  e582910... cogl: Plug leak in error path
  117a1a1... clutter: Plug leak on error condition

Commits added to the branch:

  9f14145... core: Drop code to do edge resistance on timeouts
  6fcc690... compositor: Remove dead code
  cb365eb... cogl: Fix broken check for COGL_DISABLE_GL_EXTENSION envvar
  a907465... clutter: Turn warning into assert
  0042415... backends/x11: Fix off by one in debug output
  02d4bcf... cogl: Plug GString leak
  4fa4130... x11: Drop fallback on ~/.mutter paths
  c46e1c4... cogl: Plug possible GString leaks
  fb4f674... cogl: Plug leak on error path
  e176818... wayland: Plug leak in error condition
  8fd3bb5... cogl: Plug leak in error path
  408c9dd... clutter: Plug leak on error condition