Set version to 0.7.0-alpha.
docs: Comment out html_static_path setting.

There are no static elements, so this just silences a warning.
Update version in docs.
Merge pull request #91 from QuLogic/doc-tweaks

Documentation tweaks
Fix indexing of aggregations for which axis != 0.
Merge pull request #95 from pp-mo/agg_index

Fix indexing of aggregations for which axis != 0.
Refactor scalar key/axis detection.
Merge pull request #96 from rhattersley/scalar-types

Refactor scalar key/axis detection.
added support for boolean indexing