Bump version to 0.9.0 (microsoft#292)

Signed-off-by: Jinbo Wang <jinbwan@microsoft.com>

Version 0.8.0

add more items in changelog (microsoft#253)

* 0.7.0

* add missing items in change log.

Tag 0.6.0

Update changelog for 0.5.0 (microsoft#203)

Update CHANGELOG for 0.4.0 (microsoft#180)

* Update CHANGELOG for 0.4.0

* Update change log.

fix issue microsoft#146 (microsoft#148)

fix issue microsoft#146 (microsoft#148)

Update changelog for 0.2.0 (microsoft#104)

Signed-off-by: Yaohai Zheng <yaozheng@microsoft.com>

fix build error (microsoft#66)

* fix build error

Signed-off-by: Jinbo Wang <jinbwan@microsoft.com>

* Remove the unnecessary configs from auto generated launch.json

Signed-off-by: Jinbo Wang <jinbwan@microsoft.com>