* renamed fromQVariant to convertFromQVariant, the "from" methods imply the object is changed (fromJson, fromString ..)
* implemented fromQVariant - changing the object by QVariant
* moved toQVariant into PQ template
* free function setFromQVariant
* added class
* adjusted settings context
* adjusted "global" methods as register metadata
* improved settings utility
* renamed "settingsallclasses" as settings can also be in other namespaces, settingsallclasses now in core
* fixed QHostInfo::localHostName()
* move to BlackMisc, as it can be used elsewhere
* temp. change, moved methods in body until refs #278, #277 is fixed/ resolved
* new constructor in column class
* removed overridden data method, no longer needed
* added icons for ATC station views
* QPixmap comparison for such columns (free functions)
* The map will be used with CSimulaorInfo to transfer a variable number of setting information about the flight simulator. It is being used, because it is already DBus and tupel compliant. The new name better fits its purpose.
* Add == operator for CIndexVariantMap (ambiguity error with tupels)
In #85 the voice context will be renamed to audio context, so the CValueObject classes will be renamed to namespace Audio too.
As #140 changes many CValueClasses, this crossover change is done in the same unit of work.
The new compare is implemented using "multimethods" described in the book Advanced C++ Programming Styles and Idioms by James Coplien.
First, the isA method is used to determine which of the values being compared is the most general. (For example, CLength is more general than CAltitude.)
Then the compareImpl method is called on the most general value, with the other value as an argument.
If there is not a direct inheritance relation between the two values (or they are the same class) then the comparison is invalid and a assert is triggered.
* rename CStatusMessages to CStatusMessageList
* rename NetworkVatlib to CNetworkVatlib
* replace all occurrences of Realname with RealName (correct camel case)
* CSequence method corresponding to CList::append is push_back
* don't compile the qdbuscpp2xml metadata plugin by default
* CAircraftIcao string members always trimmed and capitalized
* added CComSystem::roundTo25KHz
* using epsilon comparison in a couple of places
refs #81
