* added javaparser as sample project
* fixed crash in utility::isPrefix when prefix is longer than the actual string
* fixed crash when inserting a meta value that contains a special character
* added "language" to project settings of tutorial
* changed separators in serialized name hierarchy
* added javaparser project to windows installers
* enabled the checkbox for start menu shortcut in installer by default
* removed autorefresh icon
* removed JavaSmallTest project
* Added version number to ApplicationSettings
* Added SettingsMigrator for defining migration rules for different ApplicationSettings versions
* Migrate ApplicationSettings when loading
* added option to define the amount of parallel indexers in the appsettings
* fixed unparsed files query in ASTVisitor
* fixed: to update a node's type in the storage the node does not have to be defined anymore