0.09	2015-07-30
	[ General ]
	- Improve tests
	- Change exec_commands signature
	- The placeholder can be changed
	- which should go to /dev/null
	- Improve error handling
	[ Documentation ]
	- fix typo GnuPlot -> Gnuplot
	- better example for exec_commands

0.08	2015-03-21
	[ General ]
	- use Method-Signatures
	[ Documentation ]
	- fix spelling error

0.07	2015-03-19
	[ Documentation ]
	- fix write_data description
	- small gnuplot example fix

	[ Bug fixes ]
	- update mistaken dependency


0.05	2015-03-19
	[ Feature ]
	- Die if pipe cannot be opened.
	- Capture gnuplot stderr.

0.04	2015-03-19
	[ Documentation ]
	- fix usage of exec_commands

0.03	2015-03-18

	[ Bug fixes ]
	- fix gnuplot execution
	- remove obsolete Type-Tiny dependency
	- use File-Slurp-Tiny instead of File-Slurp

0.02	2015-03-18

	[ Bug fixes ]
	- check the presence of gnuplot
	- rename _is_ascii to _is_valid
	- change error msg for invalid char