Here is a list of all files with brief descriptions:

crc32constexper.h
helpdata.cpp
helpdata.h
humanreadableobject.cpp
humanreadableobject.h
isettings.cpp
isettings.h
locales.cpp
locales.h
optiondata.cpp
optiondata.h
params.cpp
params.h
qaglobalutils.cpp
qaglobalutils.h
qalogger.cpp
qalogger.h
qaplatformutils.h
qaplatformutils_linux.cpp
qasecretservice.cpp
qasecretservice.h
qaservice.cpp
qaservice.h
quasarapp.cpp
quasarapp.h
quasarapp_global.h
settings.cpp
settings.h
settingslistener.cpp
settingslistener.h
validableobject.cpp
validableobject.h