Remove obsolete search engine filters

robots.txt

-User-agent: *
-Disallow: /forge/activity
-Disallow: /forge/issues/calendar
-Disallow: /forge/issues/gantt
-Disallow: /forge/projects/orbit-determination-telespazio-s-contribution/activity
-Disallow: /forge/projects/orbit-determination-telespazio-s-contribution/issues
-Disallow: /forge/projects/orbit-determination-telespazio-s-contribution/repository
-Disallow: /forge/projects/orekit/activity
-Disallow: /forge/projects/orekit/issues
-Disallow: /forge/projects/orekit-labs/activity
-Disallow: /forge/projects/orekit-labs/issues
-Disallow: /forge/projects/orekit-labs/repository
-Disallow: /forge/projects/orekit-python-wrapper/activity
-Disallow: /forge/projects/orekit-python-wrapper/issues
-Disallow: /forge/projects/orekit-python-wrapper/repository
-Disallow: /forge/projects/orekit/repository
-Disallow: /forge/projects/orekit-website-2015/activity
-Disallow: /forge/projects/orekit-website-2015/issues
-Disallow: /forge/projects/orekit-website-2015/repository
-Disallow: /forge/projects/rugged/activity
-Disallow: /forge/projects/rugged/issues
-Disallow: /forge/projects/rugged/repository
-Disallow: /forge/projects/satcor/activity
-Disallow: /forge/projects/satcor/issues
-Disallow: /forge/projects/satcor/repository
-Disallow: /forge/projects/socis-2011/activity
-Disallow: /forge/projects/socis-2011/issues
-Disallow: /forge/projects/socis-2011/repository
-Disallow: /forge/projects/socis-2012-attitude/activity
-Disallow: /forge/projects/socis-2012-attitude/issues
-Disallow: /forge/projects/socis-2012-attitude/repository
-Disallow: /forge/projects/socis-2012-dsst/activity
-Disallow: /forge/projects/socis-2012-dsst/issues
-Disallow: /forge/projects/socis-2012-dsst/repository
-Disallow: /forge/projects/socis-2013/activity
-Disallow: /forge/projects/socis-2013/issues
-Disallow: /forge/projects/socis-2013/repository
-Disallow: /forge/projects/socis-2014-database/activity
-Disallow: /forge/projects/socis-2014-database/issues
-Disallow: /forge/projects/socis-2014-database/repository
-Disallow: /forge/projects/socis-2014-demo/activity
-Disallow: /forge/projects/socis-2014-demo/issues
-Disallow: /forge/projects/socis-2014-demo/repository
-Disallow: /forge/projects/socis-2015/activity
-Disallow: /forge/projects/socis-2015/issues
-Disallow: /forge/projects/socis-2015/repository
-Disallow: /forge/projects/socis/activity
-Disallow: /forge/projects/socis/issues
-Disallow: /forge/projects/socis/repository
-Disallow: /forge/projects/stavor/activity
-Disallow: /forge/projects/stavor/issues
-Disallow: /forge/projects/stavor/repository
-Disallow: /forge/search