fixed: cannot install nuget packages from local TeamCity feeds in presence of default proxy (set defaultProxy.BypassProxyOnLocal <- true)
RELEASE_NOTES
Bump version to 0.18.13
Merge branch 'bugfix'

Conflicts:
	RELEASE_NOTES.md
	src/Paket.Bootstrapper/Properties/AssemblyInfo.cs
	src/Paket.Core/AssemblyInfo.fs
	src/Paket/AssemblyInfo.fs
BypassProxyOnLocal in bootstrapper