Added version information

Version is now displayed whenever ScriptCs is launched.
#132 Version flag as a command

Specifying -version or -v will output version information.
#132 Version flag as a command
ExecuteScriptCommand now creates bin folder if it's missing. Fixes #151
Merge pull request #152 from khellang/various-fixes

ExecuteScriptCommand now creates bin folder if it's missing.
Fixed failing test after #152
Merge pull request #153 from khellang/various-fixes

Fixed failing test after PR #152
changed to constant on "bin"
added -clean command. Fixed #142
tests for #142
Merge pull request #154 from filipw/issue142

Added -clean
issue #155, added default references & default namespaces
tests for #155
Merge remote-tracking branch 'upstream/dev' into dev
#132 adapted to the latest code

Execute now returns a CommandResult
Merge pull request #156 from filipw/issue155

added default references and namespaces
#132 Removing reference to ScriptExecuteCommand.cs

File appears to be removed.  Tried checking this in earlier and it
apparently failed.
Merge pull request #146 from Codatrix/dev

#132:  Added version information
Added Get<T> method to ScriptHost and tests. Introduced IScriptHostFactory and introduced it in several places in code and tests
Merge pull request #163 from glennblock/160

Added Get<T> method to ScriptHost and tests. Introduced IScriptHostFacto...