Release v0.9.0

Update changelog for v0.8.0

Update changelog for v0.7.0

update changelog for v0.6.0

Update changelog for v0.5.0 release

Merge pull request manifoldco#94 from royeo/hide-selected

add support for hiding selected text

Release 0.3.2

Release v0.3.1 (manifoldco#75)

Release 0.3.0 (manifoldco#67)

Release v0.2.1 (manifoldco#30)