src/commands/*: use PMF/Functor signal/slot syntax
SetInitialPinCommand: port to PMF signal/slot syntax
Before the previous commit slotDialogRejected/Accepted() couldn't be called in the Functors in connect(), as the captured 'this' pointer was a pointer to non-const.
==========
SetInitialPinCommand: ensureDialogCreated() shouldn't be const
It's creating the dialog and assigning it to a member.
==========
ReloadKeysCommand: use KeyCache::instance() instead of mutableInstance() in connect call.
Edited by Ahmad Samir