- try to enforce the same style to all Qt related files
- remove unneeded includes from the files
- add missing Q_OBJECT, QT_BEGIN_NAMESPACE / QT_END_NAMESPACE
- prepares for a pull-req to include Qt5 compatibility
- add qSort() for cachedAddressTable, as qLowerBound() and qUpperBound()
require the list to be in ascending order (see
http://harmattan-dev.nokia.com/docs/library/html/qt4/qtalgorithms.html#qLowerBound)
- add a new check in AddressTableModel::setData() to just return, when no
changes were made to a label or an address (prevents entry duplication
issue)
- remove "rec->label = value.toString();" from
AddressTableModel::setData() as the label gets updated by
AddressTablePriv::updateEntry() anyway (seems @sipa added this line via
1025440184 (L6R225))
- add another new check in AddressTableModel::setData() to just return, if
a duplicate address was found (prevents address overwrite)
- add a new check to EditAddressDialog::setModel() to prevent setting an
invalid model
- re-work the switch-case statement in AddressTableModel::accept() to
always break (as return get's called anyway) and order the list to match
the enum definition
- make accept() in editaddressdialog.h a public slot, which it should be
- misc small coding style changes
