Documentation for concurrent and small improvements

git-svn-id: svn://db.shs.com.ru/pip@868 12ceb7fc-bf1f-11e4-8940-5bc7170c53b5

src_main/concurrent/piconditionlock.h

@@ -8,10 +8,13 @@
 #include <pimutex.h>
 #include <piinit.h>
 
+/**
+ * @brief Continued
+ */
 class PIP_EXPORT PIConditionLock {
 public:
     explicit PIConditionLock();
-    ~PIConditionLock();
+    virtual ~PIConditionLock();
 
     void lock();
     void unlock();