first implementation
improved docs
Merge branch 'master' of https://github.com/gem/oq-engine into fix-1149270
added a proper test for sd-imt
added more tests
updated models test
updated validation tests
use globals instead of eval
removed unused imports
calcs/hazard/event_based/post_processing:

Allow EB post-processing to run without celery.
Merge pull request #1087 from larsbutler/no-distribute-eb-post-proc

Allow Event-Based hazard post-processing to run without celery

[r=micheles] [f=*trivial]
Merge pull request #1082 from matley/fix-1149270

Vulnerability model using structure dependent intensity measure types
Merge branch 'master' of https://github.com/gem/oq-engine into aal-loss-curves
fixed slow tests
fix sdac