Empty args and options

• Generate valid code even if the yaggo file contains no args or options.

DESTDIR & empty string

• An empty string for a number now generates an error instead of a silent conversion to 0 (or 0.0).
• Added support for DESTDIR in the Makefile

Bug fix

Fixed bug with name keyword.

Bug fix single file script

Fixed a bug in the 'standalone' version of yaggo, installed with make install. It did not occur if yaggo is installed as a gem.

Added the standalone yaggo script in the release.

Bug fix

Fixed bug with empty default value in constructor. Improved man page.

v1.5.6

v1.5.6