refs #335, Minor tweaks:

* Formatting
* renaming
* fixed some issues of cppcheck
* new icons
* smooth scrolling in views, stretching for few columns
* fixed start timer in updatetimer
* background colors of some LEDs

src/blackmisc/avselcal.h

@@ -40,7 +40,7 @@ namespace BlackMisc
             CSelcal(const char *code) : m_code(code) {}
 
             //! Is valid?
-            bool isValid() const { return CSelcal::isValidCode(this->m_code); }
+            bool isValid() const { return isValidCode(this->m_code); }
 
             //! Get SELCAL code
             const QString &getCode() const { return this->m_code; }