NuGet.Server - Support normalized version (and use it in queries)

[maartenba]

NuGet.Server - Support normalized version (and use it in queries)

See NuGet/Home#2298

Short term, we plan to improve the 3.4 behavior as follows - And we will put bits in your hands as soon as they are ready (on the myget nugetbuild feed).

3.4 client will send a normalized version first which is 3 digits or 4 as applicable.
For example:

User input	Id in nuspec	Request	Response
1.0	1.0.0.0	1.0.0	Value in nuspec
1.00	1.0	1.0.0	Value in nuspec
1.00.0.1	1.0.0.1	1.0.0.1	Value in nuspec

Also we identified that the root issue in the proget repo is that it returns a 200/html instead of 404 for that request. So lets get that fixed as well.

If we get a 404 we will get all versions of the packages and pick it from there (this is already in the code but failed because of the 200/html response)

[maartenba]

Fixed