data: saving graph nodes with short name only

This change saves only the short names in the node, getName() no only gives the short version. The fullName is assembled
from the parent nodes on demand using the getFullName() method.

src/lib/utility/utilityString.cpp

@@ -2,28 +2,6 @@
 
 namespace utility
 {
-	std::vector<std::string> split(const std::string& str, char delimiter)
-	{
-		return split(str, std::string(1, delimiter));
-	}
-
-	std::vector<std::string> split(const std::string& str, const std::string& delimiter)
-	{
-		size_t pos = 0;
-		size_t oldPos = 0;
-		std::vector<std::string> vec;
-
-		do
-		{
-			pos = str.find(delimiter, oldPos);
-			vec.push_back(str.substr(oldPos, pos - oldPos));
-			oldPos = pos + delimiter.size();
-		}
-		while (pos != std::string::npos);
-
-		return vec;
-	}
-
 	bool isPrefix(const std::string& prefix, const std::string& text)
 	{
 		typedef std::pair<std::string::const_iterator, std::string::const_iterator> ResType;