Enable feature for choosing others CallingFormat 

Add "--call-format" to arguments, so users can choose different CallingFormat . Default boto will use SubdomainCallingFormat, so it could be incompatible if using different types likes OrdinaryCallingFormat .

for ex : boto-rsync -v -a 'xxxxxxxxxxx' -s 'yyyyyyyyyyyyyyyyy' --call-format boto.s3.connection.OrdinaryCallingFormat  -g 'public-read' /path/to/folder s3://mybucket/