first pass
removed tests on aggregate_losses
Merge branch 'remove_taxonomy' into partially-correlated-assets
changed product name in license statement. support for partially correlated assets
Improved a docstring
updated tests and copyright license
added tests for sampling
Merge branch 'master' of https://github.com/gem/oq-risklib into partially-correlated-assets
Merge branch 'partially-correlated-assets' of https://github.com/gem/oq-risklib into partially-correlated-assets
added docs
updated documentation
Merge pull request #32 from gem/partially-correlated-assets

Partially correlated assets