v1.1.4

This is a bugfix release. If you use format p or pass non-integer values to formats i or u you should upgrade to this version to fix potentially serious bugs in these formats.

• Fixed a bug where certain non-integer values passed to format p, i, or u can crash the library outright or cause it to silently write incorrect data. The root cause was an incorrect assumption that string.char would truncate rather than rounding.
• Improvements to documentation and unit tests.