support dashes in pre releases

references #263
added missing namespace and better exception
Add failing test for #287
Merge pull request #290 from ctaggart/namespace

added missing nuspec.xsd namespace and better exception
Merge branch 'master' of https://github.com/fsprojects/Paket
Fix namespace handling in nuspec files - closes #287
Bump version to 0.9.2
Merge pull request #288 from mexx/dash-in-prerelease

support dashes in pre releases
RELEASE_NOTES
Bump version to 0.9.3
Use normal 4.0 framework libs when we only specify net40
Bump version to 0.9.4
Fix !~> resolver
Bump version to 0.9.5
Adding some VersionRequirementSpecs as regression tests
Adding some VersionRequirementSpecs as regression tests
Bump version to 0.9.6
Revert "support dashes in pre releases"

This reverts commit d1c81ee903388c8b3c3d464bcb306fa4b5db59eb.
Bump version to 0.9.7
restore the references just for the project