Fix 2013 package name

Version bump, VS and SSMS release

Reset package ID so I can get a new Marketplace URL for 2013

Now-unused timer object reference

Need explicit version strings for Shell.Immutable.10.0 and Shell.Immutable.14.0, else bad things happen.

Fix VS version split 2013 vs 2015-2019, instead of 2013-2015 vs 2017-2019: #236

Attempt fix SSMS version support issues (2014 & 18): #194, #234

Correction to publisher name for new VS2015-specific extension

Version bump, for VS Package Split

Swap GUIDs, ensuring the existing user base is supported on VS2017 and VS2019

Fix previous/existing VS extension to target up to 2015

Add 2019-specific VS Extension Package with Async Loading support (Issue #229)

Version bump, for new/fixed VS Extension Package build on marketplace

Version bump, release

Fix Publisher ID