v0.3.0

New major release!

Short changelog:

• Installable via npm repository either as a global or local package;
• Added a runner CLI tool to run tasks from runnerfile.sh;
• Added integration with bash-require;
• Small internal code optimizations and structural refactoring;
• Added simple tests.

Breaking changes:

• Reordered runner_colorize arguments
• runner_time now returns time in milliseconds