Added a way to set speaking rate
Bump version down to '4.1.4'

* Fixes spelling errors ('aswell' -> 'as well')
* Changes version back down to 4.1.4
Merge pull request #57 from kethomassen/master

Added a way to set speaking rate in speech method
Add .ruby-version to .gitignore
Format multiline program and command descriptions

Apply indentation to multiline program and command descriptions.
Fixes #54.