Version 0.4.0

Better support for clang under msys2.

Version 0.3.0

• Better support for 32-bit systems (@biojppm)
• Removed iostream dependency (@biojppm)
• The algorithmic fast paths are more common
• Adopted slightly faster SWAR code (@aqrit)

Version 0.2.0

• Support for Big Endian systems (credit to @kiszk)
• Build with pedantic flags under GNU GCC without warnings (@biojppm)
• More standard compliant handling of problematic strings (issue19 by @zhihaoy)

Version 0.1.0

First official release. It has been thoroughly tested.