Fixes for the cfscript version of LoginManager

I've been trying to use the cfscript version of the code for the LoginManager but there were a few syntax errors. I've tweaked the code a little so it now loads ok.

I'm running CF 9.0.1 and it complained about the exception handlers until I put in the full statement
``` 
cfcatch (any e ) {}
```
I don't know if that's expected behaviour but CF doesn't throw an error about it now.