There are actually several instances where we pass in read-only
parameters as pass-by-value, where in the case of String() that
is inefficient as it involves copy-constructor/temp string creations.
We can avoid that, similarly to single character string concatenations
done via string literals instead of char literals.
* LEAmDNS Responder (II)
Created a new branch to solve commit conflicts with recent changes to ESP8266mDNSResponder.cpp by d-a-v.
* Removed millis() roll-over issues
* fix LEA-mDNS
* astyle on lea-mdns examples
* add compatibility with lwIP-v1
* ditto
* use strncasecmp instead of lwip's strnicmp from lwIP-v2 (thanks @devyte)
* ditto
* fixes
* Update mDNS_Clock.ino
unindent
* Update mDNS_ServiceMonitor.ino
unindent
* Update LEAmDNS.h
Add setInstanceName() forwarder for compat
* Disable DEBUG_ESP_MDNS_RESPONDER by default
* [Fixed] Debug output line
DEBUG_OUTPUT needs to go inside DEBUG_EX_ function otherwise throw error if DEBUG_ESP_MDNS_RESPONDER is not defined
