v1.2.1

### Releases v1.2.1

1. Clean-up all compiler warnings possible.
2. Add Table of Contents

Author: khoih-prog

src/SSLClient/SSLClientParameters.cpp

@@ -27,13 +27,6 @@
 
 #include "SSLClient/SSLClientParameters.h"
 
-// fix for non-exception arduino platforms (Feather and Teensy 4.0)
-namespace std 
-{
-  void __attribute__((weak)) __throw_length_error(char const*) {}
-}
-
-
 struct ssl_pem_decode_state 
 {
   std::vector<char>* vect;

src/SSLClient/SSLClient_Impl.h

@@ -737,7 +737,7 @@ unsigned EthernetSSLClient::m_update_engine()
         ET_LOGDEBUG3(F("avail ="),   avail, F(", len ="), len);
 
         // I suppose so!
-        int rlen = m_client.read(buf, avail < len ? avail : len);
+        int rlen = m_client.read(buf, avail < (int) len ? avail : len);
 
         if (rlen <= 0) 
         {