src.txt 1.23

Include ALv2 Notice
VS2013/Default .gitignore

Ignore subfolder DefaultProject/
Adjust .gitignore

Clarify that complete expansions of project artifacts into the working
tree are excluded from the source tree where the extraction is provided.
VS2013.txt 1.23 update details

Add license and some information about where to obtain the free Visual
Studio releases that can be used.
Populate VS2013/Default/

The test project is included