Merge branch 'ua/atoi'

Replace various calls to atoi() with strtol_i() and strtoul_ui(), and add improved error handling. * ua/atoi: imap: replace atoi() with strtol_i() for UIDVALIDITY and UIDNEXT parsing merge: replace atoi() with strtol_i() for marker size validation daemon: replace atoi() with strtoul_ui() and strtol_i()