Merge pull request #1198 from matley/run-risk-demos

Run risk demos to test the package
Fixed the issue with sequences in restore_hazards.py
Added dumping of ses_collection/ses/ses_rupture
fix test expected value
Fixed some numbers in risk/classical/case_3 due to the changes in hazardlib
removed unuseful test
Merge pull request #1204 from matley/fix-get-asset-chunk-test

Fix get_asset_chunk unit test
merge commit
Merge pull request #1205 from gem/planar_ruptures_tolerance

Fix risk/classical/case_3
Merge pull request #1202 from gem/fix_restore_hazards

Fixed the issue with sequences in restore_hazards.py
Merge pull request #1203 from gem/dump-ses-data

Added dumping of ses_collection/ses/ses_rupture
Merge branch 'master' of https://github.com/gem/oq-engine into risk-peb-qa
changed risk e2e qa tests to use precomputed hazard fixtures