first implementation
event based bcr pass
all qa tests pass
bin/openquake:

Rewrote the --lhc and --lrc output formatting. The timestamp of the latest job
is also included.
bin/openquake:

Added a docstring to _print_calcs_summary.
bin/openquake:

Removed some unnecessary print statements.
bin/openquake:

Cleaned up the --lho and --lro output as well, to be consistent with --lhc and
--lrc.
added maximum distance field
bin/openquake:

Added some missing docstrings.
bin/openquake:

Cleaned up imports and fixed some pep8 warnings.
hazard tests refactoring
improved logging
Merge branch 'master' of https://github.com/gem/oq-engine into risk-maximum-distance
changed default maximum distance
improved documentation
fixed hg for scenario data
disabled supervisor in no-distribute. fixed a bug with empty gmvs
fixed event based hg query
make the sdac qa test 1 split the gmvs in equal-sized parts
improved __getstate__ __setstate__ of hg