handlersearch: Allow all characters by escaping FTS

Escape FTS queries by simply treating everything as string.
Though this way a user cannot use operators, it's an improvement
over how it was done before.

Closes: #7

handlers/handlersearch.cpp

@@ -28,15 +28,6 @@ Response HandlerSearch::handleRequest(const Request &r)
 		return errorResponse("Missing search term", "No search term supplied");
 	}
 
-	for(int x : q)
-	{
-		if(!isalnum(x) && !isspace(x))
-		{
-			return errorResponse(
-				"Invalid char",
-				"Currently, the search is limited and so only supports alpha numeric characters and spaces");
-		}
-	}
 	auto pageDao = this->database->createPageDao();
 	QueryOption qo = queryOption(r);
 	try