logic: code controller

- Renamed MessageActivateTokenLocation to MessageActivateToken, since it uses the Token id (not the TokenLocation id).
- Implemented CodeController to add one snippet for each location where the activated token occurred.
- Added Semaphore to QtThreadedFunctor to prevent an evil race-condition.
- CodeView dispatches message when a token is clicked.

src/lib/data/location/TokenLocationCollection.h

@@ -11,6 +11,7 @@
 
 class TokenLocation;
 class TokenLocationFile;
+class TokenLocationLine;
 
 class TokenLocationCollection
 {
@@ -37,6 +38,8 @@ public:
 	TokenLocationFile* findTokenLocationFileByPath(const std::string& filePath) const;
 
 	void forEachTokenLocationFile(std::function<void(TokenLocationFile*)> func) const;
+	void forEachTokenLocationLine(std::function<void(TokenLocationLine*)> func) const;
+	void forEachTokenLocation(std::function<void(TokenLocation*)> func) const;
 
 	TokenLocation* addTokenLocationAsPlainCopy(const TokenLocation* location);