get rid of most clazy warnings (https://github.com/KDE/clazy)
* range loop use refs
* qcolor ctor with ints
* missing Q_OBJECT macro
* use .constfirst instead of .first
enabled ccache for unix systems for fasterr recompiling
* if ccache is in path we use it now
* define TRACING_ENABLED in utility/tracing.h to enable tracing
* invoke TraceEvent by writing TRACE() at start of function or scope
* provide an event name with TRACE("name")
* press SPACE to show collected traces history and report with accumulated times
* delete test.sqlite in storagetestsuite in desstructor
* remove new and delete from suffixarray
* case sensitive fts
* fixed fulltext results annotated like errors
* lazy suffix array building
* fulltextsearch folder added
* go back too branch without _publish
* suffixarray working
* logic: Improved code view performance
Andreas Stallinger