Fix typo: s/Donwloading/Downloading
treat unportability of `uname -m`
mark sparc and ppc as bigendian
use `cim_arch` where `uname -m` was used
update .gitignore
Fix a couple of typos
Merge branch 'fix-typos' of https://github.com/luismbo/CIM into develop
When sbcl is built, show under which implementation sbcl is built
update NEWS
update VERSION