Improve the implementation of adding a row to the accounts list model and implement removing a row.#
Improve the implementation of adding a row to the accounts list model and implement removing a row.#

svn path=/trunk/playground/network/telepathy-accounts-kcm/; revision=926251

KDE/ktp-accounts-kcm,KDE/ktp-accounts-kcm,KDE/ktp-accounts-kcm