PICout improvement:

* renamed private members for more clear code
 * registerExternalBufferID() method to obtain unique ID for withExternalBuffer()
 * PICoutManipulators::PICoutStdStream enum for select stream (stdout or stderr)
 * Constructors now accept optional stream
 * piCerr and piCerrObj macros

PIDir::temporary() moved to "mkdtemp"

PILog:
 * now 4 levels
 * you can set max level
 * Error writes to piCerr

main.cpp

@@ -66,10 +66,10 @@ protected:
 	int counter = 0;
 };
 
-
+#include <iostream>
 int main(int argc, char * argv[]) {
 	PILog log;
-	log.setApplicationName("test");
+	log.setLogName("test");
 	log.setDir("logs");
 	// log.setTimestampFormat("hh-mm-ss");
 	// log.setLineFormat("[c] m (t)");
@@ -78,12 +78,15 @@ int main(int argc, char * argv[]) {
 	// log.enqueue("debug msg");
 	// log.enqueue("warn msg with ${c}", PILog::Category::Warning);
 	// log.enqueue("ERROR${m}${t}", PILog::Category::Error);
+	log.setLevel(PILog::Level::Info);
 
-	log.debug(&log) << "some msg";
+	log.debug() << "some msg";
+	piMSleep(50);
+	log.info() << "information";
 	piMSleep(50);
 	log.warning() << "another!";
 	piMSleep(50);
-	log.error() << "blahblahblag";
+	log.error(&log) << "critical!";
 
 	// log.stop();
 	return 0;