Updating boost version from 1.46 to 1.55.
Removes boost 1.46 files, adds boost 1.55 files. Updates the import header script to reflect the parts of boost we are using.
Two new flags are added to the default build, BOOST_ERROR_CODE_HEADER_ONLY and BOOST_SYSTEM_NO_DEPRECATED.
Much thanks to Doug.
With integration tests there are 8 changes. 6 are related to boost::unordered_map:
- nonideal_rtmin, mr_protocols, hybridization --- via cart_bonded
- rs_loophash, match --- via the 6D hasher
- sequence_tolerance
There are two other integration test changes:
- sweep_respair_energies -- the binary .db3 files change; not replicated on other machines
- noe_assign -- due to a small bugfix