Testing

• Added tests for the gem.
• Added dependencies to the gemspec.

Fontello generator for jekyll

• Download and extract zip from Fontello given a configuration file.
• Change the configuration file using the config option.
• Change output directories with the output_fonts and output_styles options.
• Change the font path in stylesheets using the fonts_path option.
• Support for LESS and SCSS preprocessors with the preprocessor option.