allow installation exception to be caught in InstallCommand
added -p option to mkdir in build.sh to prevent failure when exists
Merge pull request #797 from adamralph/779

added -p option to mkdir in build.sh to prevent failure when exists
Merge pull request #796 from adamralph/794

Fix for #794 - failed installation yields exit code 1
Updated tests to fail
Added fetching of framework assemblies from nuget packages
Merge pull request #801 from khellang/framework-assemblies

Reference framework assemblies specified in installed NuGet packages
Fixed failing tests
perform the complete submission check only if there is no executed code file (so only for REPL mode)
added test for not performing submission complete check for script mode
Merge pull request #804 from filipw/bugfix/802

do not inspect code for submission completeness when executing script
changed script command to log and return an error when the submission is incomplete
whitespace, remove and sort usings
Merge pull request #806 from adamralph/script-command-require-complete-script

Script Command logs and returns an error when an arbitrary engine recognises an incomplete submission
Fixing merge conflict