Copied add-ons from rob-nhlib to rob-hazardlib
Updated custom GMPE's to hazardlib namespace
Added BOTH_HORIZONTAL to const.IMC
Updated compile_speedups to openquake namespace
Merge branch 'master' into rob-hazardlib
Added constants for VS=2000 m/s to campbell2003_adjusted and
toro2002_adjusted
Started implementing kappa parameter in campbell_2003_adjusted
and toro_2002_adjusted
Temporary kludge for kappa parameter in *_adjusted GMPE's
Fixed further bugs in campbell_2003_adjusted and toro_2002_adjusted
Implemented adjusted forms of Campbell2003 and ToroEtAl2002 GMPE's
for all vs30 and kappa values in SHARE report, and
modified SiteContext, Site, and SiteCollection classes to accept
kappa parameter
Merge branch 'master' into rob-hazardlib

Conflicts:
	openquake/hazardlib/site.py
added updated versions of ab2006 and ba2008
Added modify_set_occurrence_rates method to EvenlyDiscretizedMFD
Merge branch 'rob-hazardlib' of https://github.com/ROB-Seismology/oq-hazardlib into rob-hazardlib
Fixed bug in MODIFICATIONS property of EvenlyDiscretizedMFD
removed  so that jb-based distance method in super class is used instead
updated tests
removed reference to PointSource.filter_sites_by_distance_to_rupture
Merge remote-tracking branch 'ROB/rob-hazardlib' into rob-hazardlib
Merge remote-tracking branch 'ROB/rob-hazardlib' into rob-hazardlib