Merge branch 'facebook_sdk' into 'master'

scanner: add facebook sdk to forbidden libraries

Closes #534

See merge request fdroid/fdroidserver!542

fdroidserver/scanner.py

@@ -75,6 +75,7 @@ def scan_source(build_dir, build=metadata.Build()):
             r'ouya.*sdk',
             r'libspen23',
             r'firebase',
+            r'''["']com.facebook.android['":]''',
         ]
     }