fsharp/fsharp — pull request #274 by enricosada (2014-02-22 21:54:06+00:00)
Title: add --version to fsc/fsc  to show version info

replace the already deprecated --version parameter

:warning: Work, but dont merge, read below

this add a --version to fsc/fsi, like:
```
fsi --version
F# Interactive 4.3.1.0
```

Is usefull because:
* --version is pretty much standard
* we need a param to call fsi, to get minimal info about version and return code 0 ( so can be used to other program like pkg-config --atleat-version )

Question: now i read Assembly ProductiVersion, there is another attribute? we need to add other info?
* date of build? like 2014-02-22
* git commit identifier? like e914d26
* x86/64/special compile flag really important
* remove `F# Interactive`, print only version?