Merge branch 'devel' into 'production'

Devel

See merge request !48

files/squid/helpers/rules.d/cplusplus.rules

@@ -26,3 +26,7 @@
 ^https?://duckduckgo\.com/.*\.js                        true
 ^https?://duckduckgo\.com/.*\.js\?.=.*                  true
 ^https?://duckduckgo\.com/50x-tq.html\?tq=.*            true
+
+// cppreference google search
+^https?://www.google\.com/ true
+^https?://www.google\.com/search\?q=site%3Acppreference.com\+.* true