Add assert_point_in_collection and use it to test more
Add TestTwoRegionsAnnotation
Use boundary
Flip xlim of the test case to illustrate the problem I have
Add test_annotations_are_in_region (failing)
Fix failing test; it was wrong mask array handling
Bit be caution about mask arrays
Merge branch 'TestAnnotationWithFlippedXLim'

Fix: annotation locates outside of region when xlim[0] > xlim[1].
Fix ExplicitXRegion._get_xlim
Bump to 0.0.3.dev1