PowerPoint.
added office interop references
closes #123
CodeInspectionBase now takes a SyntaxTreeNode instead of an Instruction parameter.
fixes #124
Access, Outlook, Publisher, PowerPoint
PowerPoint

Merge branch 'master' of https://github.com/retailcoder/Rubberduck

Conflicts:
	RetailCoder.VBE/IHostApplication.cs
implemented MultipleDeclarationsInspection & quickfix - closes #26
merged
[re-]added PowerPointApp, OutlookApp and PublisherApp classes into project
added inspection files back into project
off-by-one again - multiple declarations inspection selects 1 too few characters.
Update Parser.cs
added a few scoping tests
Merge pull request #128 from Hosch250/patch-1

Update Parser.cs
syntax fixes
pulled master; resolved conflicts