Added mssing namespace imports from script packs to RoslynScriptEngine
Merge remote-tracking branch 'upstream/dev' into script-pack-changes
Merge pull request #124 from khellang/script-pack-changes

Added mssing namespace imports from script packs to RoslynScriptEngine
renaming bootstrapper/composition root
Merge pull request #128 from glennblock/125

renaming bootstrapper/composition root