Resolves #389
InitializeAudioAndScript refactored, preparing for implementing lazy loading.
Lazy loading
mostly done, need to handle single slide copy paste problem.
fixes #403
Merge pull request #404 from PowerPointLabs/Issue_403

fixes #403
Merge commit 'merge pull request 403' into Feature-AudioRecord
Merge branch 'Feature-AudioRecord' into Issue_376
Handled single slide copy paste, need to be tested.
Merge pull request #405 from PowerPointLabs/Issue_376

Issue #376
Merge branch 'Feature-AudioRecord' into Feature-CustomShapes

Conflicts:
	PowerPointLabs/PowerPointLabs/ThisAddIn.cs