Improved measurement of s:system elapsed time
Improved some makefiles
Update README
OpenBSD support

OpenBSD uses util.h ¿maybe FreeBSD?
Merge pull request #149 from ichizok/fix-timeout

Improved measurement of s:system elapsed time
Merge pull request #148 from ichizok/improve-makefiles

Improve makefiles
Add travis
Detect CPU automatically when using MinGW
fix vimlint error
update document

This modification was missing from the commit
27024ad641031e3be57f04c0495f4798e37b95a0.
Use mingw32-make instead of make on MinGW
Merge pull request #151 from TheLinuxKitten/openbsd

OpenBSD support