Added simplecov to Gemfile
Removed whitespace
Updated helper to include simplecov
Updated cukesparse to version 2.1.3 and updated date in .gemspec
Added empty_tasks.yml file to test scenario
Removed rescue block and changed system call to exec
Added check to see if config file is empty and output, added relevant unit test
Added build_command method unit tests to bring coverage back upto to 100%
Added some development gems into Gemfile and moved pry from gemspec
Added .gitignore file to ignore features and config folders