* modest-cache-mgr.c:   - glib < 2.12 does not support g_hash_table_remove_all, therefore     use g_hash_table_foreach_remove instead
* modest-cache-mgr.c:
  - glib < 2.12 does not support g_hash_table_remove_all, therefore
    use g_hash_table_foreach_remove instead

pmo-trunk-r693

community-ssu/modest,community-ssu/modest,community-ssu/modest,community-ssu/modest