Make bconf_io parts into bootstrap_http

Change-Id: I3635d795195d9c36292ce31284b90c4e5e3d59bb
add transport argument to constructor

Change-Id: I233f1bb12573f3bc7acc3685644b2e3aff596b62
Bootsrap with CCCP

Change-Id: I96e91180f06b87e92ac1acee2c44dead1a2503af
sync with ep-engine/command_ids.h

Change-Id: Ic244016a84557aa11115ef44b6e37a5ad344c24e