Fix history info loading assertions.
Remove mtime property.
Start to add some expected assertion fixtures.
Merge branch 'test-fixtures' into no-mtime
Master is generating mtimes right now.
Merge branch 'test-fixtures' into no-mtime
Remove mtime from expected fixtures.
Sanitize basepath in test fixtures.
Merge pull request #338 from mapbox/test-fixtures

Test fixtures
Merge pull request #339 from mapbox/no-mtime

No mtime
Merge branch 'master' into no-layer-zooms
Update source vector_layers key with removal of min/maxzoom.
Merge branch 'no-layer-zooms' of github.com:mapbox/tm2 into no-layer-zooms