Merge pull request #4 from jeppenejsum/master

Enable 32Bit app pool
Merge pull request #5 from jeppenejsum/master

Add suppport for specifying app pool identify
Don't spawn child process

It did not work anyway when killing the process.
Add option for warmup URL
Added option to exit immediately

Useful for timing warmups
Set app pool idle timeout to 1 week
Update existing site if possible

This allows external programs to change things like log format etc