833 Allow log level to be set in debug mode.

Fix typo in test name.

Allow REPL command aliasing

Conflicts:
	src/ScriptCs.Engine.Roslyn/RoslynScriptEngine.cs

…mmand

…he variable

…eTests

…orrect with the command dictionary (instead of list)

Added support for :references, :usings, :vars and :help in REPL

…remove redundant code, fix code formatting

 - redundant code
 - line length
 - guard clauses
 - EOL at end of file
 - readonly fields
 - replace if with null coalesce
 - replace if with inline conditional
 - whitespace

refactoring after #830

…nAnUnknownCommandIsPassed

…ptionWhenAnUnknownCommandIsPassed

improved feedback for alias REPL command

increment to 0.12.0

Remove Code Analysis from the build script

Fixed typos.