default value for vault root
setup void functors
look up local for the public key request
Using boost::wait_for_all() to wait for maid & pmid and more work on pmid registration.
correct one error in vault_key_helper option check
Merge branch 'vault' of github.com:maidsafe/MaidSafe-Vault into vault
get client join the network
Merge branch 'cache_vault' into vault