Added a source link target
VSProj.LoadRelease complains about an import statement with an invalid path, added a condition to prevent this.
If we're source indexing pdb then it might make sense to ship it as well
Added comments to target and updated the readme
SourceLink check sums will fail if the line endings aren't lf
Checks for the existence of the source link decencies instead of not mono.
Merge pull request #61 from TWith2Sugars/sourcelink

Added a source link target