fix host arch detection and use newly created assert_version function to check for swig and doxygen versions
fix host arch detection and use newly created assert_version function to check for swig and doxygen versions

sorig/shogun,lambday/shogun,besser82/shogun,Saurabh7/shogun,lisitsyn/shogun,Saurabh7/shogun,shogun-toolbox/shogun,besser82/shogun,karlnapf/shogun,sorig/shogun,Saurabh7/shogun,besser82/shogun,shogun-toolbox/shogun,Saurabh7/shogun,karlnapf/shogun,geektoni/shogun,sorig/shogun,Saurabh7/shogun,Saurabh7/shogun,shogun-toolbox/shogun,karlnapf/shogun,karlnapf/shogun,shogun-toolbox/shogun,Saurabh7/shogun,lisitsyn/shogun,geektoni/shogun,lisitsyn/shogun,karlnapf/shogun,lambday/shogun,lisitsyn/shogun,sorig/shogun,besser82/shogun,geektoni/shogun,sorig/shogun,Saurabh7/shogun,geektoni/shogun,lambday/shogun,lambday/shogun,Saurabh7/shogun,geektoni/shogun,lambday/shogun,karlnapf/shogun,sorig/shogun,geektoni/shogun,besser82/shogun,shogun-toolbox/shogun,lambday/shogun,lisitsyn/shogun,lisitsyn/shogun,besser82/shogun,shogun-toolbox/shogun