fixes #408 by skip unzipping process and hide narration tab group.
Merge pull request #414 from PowerPointLabs/Issue_408

fixes #408 by skip unzipping process and hide narration tab group.
fixes #416
Merge pull request #420 from PowerPointLabs/Issue_416

fixes #416
fixes #407
Merge pull request #421 from PowerPointLabs/Issue_407

fixes #407
fixes #407, function works but need more general function
Merge branch 'release_v1.7' into Feature-CustomShapes

Conflicts:
	PowerPointLabs/PowerPointLabs/Ribbon1.cs
	PowerPointLabs/PowerPointLabs/ThisAddIn.cs