Moved some of the getDatabase calls to device_postRegistration which is a more logical location. Handle DND better, by call sccp_feature_change when loading from the database, this also updates the displayed DND on the device itself. Use sccp_device_setLastNumberDialed to update the d\-\>lastnumberDialed and also activate the redial button if necessary.

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5441 43c1dc8c-776e-4df2-8ef1-6e829299be21