Increment version to v0.7.0
Passing ScriptArgs to script packs trough IScriptPackSession
Updated to Nuget 2.7 and preserved the existing logic of loading default settings
Removed callbacks from IPackageInstaller and IInstallationProvider - replaced with ILog
updated tests to reflect the removed callbacks
removed callbacks from PackageAssemblyResolver and replace with ILog. Also updated tests.
upgraded tests projects to use Nuget 2.7 too. scriptcs build version should be alpha
Merge branch 'dev' of https://github.com/scriptcs/scriptcs into stuff

Conflicts:
	src/ScriptCs.Hosting/Package/NugetInstallationProvider.cs
	src/ScriptCs.Hosting/Package/PackageInstaller.cs
	test/ScriptCs.Core.Tests/PackageAssemblyResolverTests.cs
Merge pull request #451 from filipw/nuget-upgrade

Nuget.Core upgrade to 2.7, removed old callbacks
updated to NuGet 2.7
added missing guard clauses
Merge pull request #454 from adamralph/guard-clauses

Updated to NuGet 2.7 and added missing guard clauses
Fixing small bug in ShouldNotReturnNonManagedAssemblies Test
See here: https://github.com/scriptcs/scriptcs/commit/a07ea4d2006be5338d51add0fdc83caa56d3a193#L5R67
Added possibility to override IConsole
Merge pull request #457 from johnduhart/testfix

Fixing small bug in ShouldNotReturnNonManagedAssemblies Test
Remove '%LOCALAPPDATA%\scriptcs' on uninstall.

Fixes #459.
Moved IScriptHost.cs and IScriptHostFactory.cs back to core to prevent regression.
Also removed them from IServiceOverrides.cs and ServiceOverrides.cs

This way Roslyn engine doesn't need to know about contracts
Added test verifying that Roslyn Engine references Core
Added tests for overriding console
Merge pull request #464 from filipw/iconsole

Added possibility to swap IConsole