Bugfix: Fix a variety of misspellings

src/netbase.cpp

@@ -543,7 +543,7 @@ std::vector<unsigned char> CNetAddr::GetGroup() const
         nClass = 1;
         nStartByte = 12;
     }
-    // for 6to4 tunneled addresses, use the encapsulated IPv4 address
+    // for 6to4 tunnelled addresses, use the encapsulated IPv4 address
     else if (IsRFC3964())
     {
         nClass = 1;

src/util.h

@@ -12,7 +12,7 @@
 #include <sys/time.h>
 #include <sys/resource.h>
 #else
-typedef int pid_t; /* define for windows compatiblity */
+typedef int pid_t; /* define for windows compatibility */
 #endif
 #include <map>
 #include <vector>