Allow faster termination if the 'observer' threads.

src/Thread_CPUObserver.cpp

@@ -127,7 +127,10 @@ void CPUObserverThread::observe(void)
 					}
 				}
 			}
-			msleep(2000);
+			for(int i = 0; i < 6; i++)
+			{
+				if(!m_terminated) msleep(333);
+			}
 		}
 	}
 	else

src/Thread_DiskObserver.cpp

@@ -88,7 +88,10 @@ void DiskObserverThread::observe(void)
 				previousSpace = freeSpace;
 			}
 		}
-		msleep(2000);
+		for(int i = 0; i < 6; i++)
+		{
+			if(!m_terminated) msleep(333);
+		}
 	}
 }
 

src/Thread_RAMObserver.cpp

@@ -79,7 +79,10 @@ void RAMObserverThread::observe(void)
 				previous = current;
 			}
 		}
-		msleep(2000);
+		for(int i = 0; i < 6; i++)
+		{
+			if(!m_terminated) msleep(333);
+		}
 	}
 }