* removed paths in include directives
* changed cmake to provide necessary header search paths
* changed name of version.h to productVersion.h due to name conflict
* Handle all error related messages in ErrorController
* Moved error filter state from Storage to ErrorController
* Moved all error related messages to type/error subdirectory
* Enable all errors shown by default
* Always show unfiltered error count in status bar and overview
* Fixed all errors shown again when changing error filter on errors for file