fix readability-*:

* readability-const-return-type
* readability-container-data-pointer
* readability-container-size-empty
* readability-delete-null-pointer
* readability-else-after-return
* readability-inconsistent-declaration-parameter-name
* readability-redundant-member-init
* readability-redundant-smartptr-get
* readability-redundant-string-cstr
* readability-use-anyofallof
* readability-static-definition-in-anonymous-namespace
* readability-static-accessed-through-instance
* readability-simplify-boolean-expr

src/Base/Sequencer.cpp

@@ -72,7 +72,7 @@ QRecursiveMutex SequencerP::mutex;
 SequencerBase& SequencerBase::Instance()
 {
     // not initialized?
-    if (SequencerP::_instances.size() == 0) {
+    if (SequencerP::_instances.empty()) {
         new ConsoleSequencer();
     }