Security update for opera

This update for Opera to version fixes the following issues:

- boo#1086610: Version update to 52.0.2871.30, including all upstream fixes and improvements
- The Chromium engine updates contain various security fixes

The following packaging changes are included:

- .desktop file was updated to comply with freedesktop.org

Fixed bugs
bnc#1086610
Opera 52.0.2871.30 maintenance update
Selected Binaries
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