Remove unknown classifier

Release 5.1.0

Update version details

Merge branch 'RC4' of https://github.com/SpiNNakerManchester/sPyNNake…

…r.git into RC4

Mark the limit of where we got with testing before PyNN 0.8

3.0.0 Release

2016.001.001 Release

2016.001 Release

2015.005.01 release

2015.005 release