Fix Timer's documentation about return values (#33)

Author: knopers8

include/Common/Timer.h

@@ -39,11 +39,11 @@ class Timer {
     /// Check if time elapsed since timer reset (or last increment set) is bigger than timeout value set.
     /// \return Returns 1 if timeout, 0 otherwise.
     int isTimeout();
-    
-    /// \return Returns time elapsed since reset, in microseconds.
-    double getTime();    
 
-    /// \return Returns the time until next timeout, in microseconds. This may be a negative value if timeout occured already.
+    /// \return Returns time elapsed since reset, in seconds.
+    double getTime();
+
+    /// \return Returns the time until next timeout, in seconds. This may be a negative value if timeout occured already.
     double getRemainingTime();
 
   private: