added README to demos
Merge pull request #1266 from matley/risk-demo-review

Review Risk demos
db/schema/load.sql:

Set the initial DB revision, if the database is being set up freshly.
Merge pull request #1269 from larsbutler/set-baseline-db-revision

Correction of baseline DB revision.

[r=matley] [f=*trivial]
tests/export/hazard_test:

Added a test to prove that
https://bugs.launchpad.net/oq-engine/+bug/1202290 exists.
export/hazard:

Refactored metadata handling in hazard curv and hazard curve multi
exporters.
export/hazard:

Added explicit support for hazard_curve_multi outputs in
_get_result_export_dest.
tests/export/hazard_test:

Added a hazard_curve_multi test case to `_get_result_export_dest` tests.
Merge branch 'fix-haz-curve-multi-export-path' of https://github.com/larsbutler/oq-engine into gzipped-content
Add a tests for the compress/decompress functionality