* removed old AstVisitor
* added new implementation called CxxAstVisitor
* added CxxVerboseAstVisitor that may wrap the CxxAstVisitor to log the AST while visiting
* added the same structure for the Java visitors
* removed all the logs that were fired when recording stuff
* Added UI setting for verbose indexer logging.
* implemented AST name obfuscation for Java and Cxx
* unified test visitors for Java and Cxx
* implemented recording using directive decl
* removed most of the old onXxxParsed methods
* Added TaskParse as base for TaskParseCxx and TaskParseJava
* Fixed increment and decrement of indexer_count on blackboard not atomic
* Fixed TaskInjectStorage finished before TaskParse started
* Fixed project not cleared when refreshing on now empty project
* Fixed TaskInjectStorage overheating when nothing to do
* added setting for maximum memory allocated by JVM to Preferences window.
* a value of -1 ignores this setting
* changed default value for this setting to -1
* increased JNI version to Java 1.8
* disabled some file system tests for windows