#2 Crossbow: SOAPsnp parse error for parameter "-L"

[Tully Ernst]

The SOAPsnp contained within the crossbow release as an integer overflow due to the use of #atoi.
This results in an inconsistent parameter -L (max read length) for values of 256 or greater (depends on compiler???)
The uploaded files use long int and #atol to circumvent this problem.

[Tully Ernst]

Fixed overflow for soap_snp.h and main.cc