Update mpi_wrapper.h

Added a #include <string> because std::string was not in scope and my compiler complained (<cstring> does not include <string>).
changing Lindh Hessian guess
changes to trust radius scaling
keyword for dumb-scaling vs. restricted-step algorithm
changed default to include selected auxiliary bonds
Merge branch 'master' of github.com:psi4/psi4
fixed simple_step_scaling
Intrafragment step limit now uses the norm of dq
Analytic gradients for DF-OMP2. RHF/UHF references are available as well as frozen-core approximation.
Minor changes in docs.
Adds the ability to run broken symmetry SCF for a specified DOCC and SOCC, which can then be used for a correlated level of theory
Update reorder_qt.cc

With the new changes my compiler now complains it can't find Process, so I added a: #include "psi4-dec.h" statement at the beginning.
implemented proper Lindh Hessian model with keyword to allow the model
to be used across the PES instead of hessian update
Merge branch 'master' of github.com:psi4/psi4
made print levels more consistent and print=2 practical for large systems
Merge branch 'master' of github.com:psi4/psi4

Conflicts:
	src/bin/optking/opt_data.cc
Re-tarred boost_1_55_0 with GNU tar rather than BSD.
Bug fix, don't restrict step size if projected step has DE>0, but actual DE<0.
Merge branch 'master' of github.com:psi4/psi4
Adding oeprop for df-omp2. The present code includes df-mp2 grad for RHFi as well. UHF and ROHF will be added later.
Fixed problem with CMakeLists.txt not being updated
adds missing sourcefile