Update .gemspec to require adhearsion 2.4, and not require adhearsion-asterisk
Use ahn's new #say_characters method - works on all platforms
[CS] Refactor for better readibility
Force recorded file to be played back as audio
Add a license to the gemspec
Move some hardcoded values out into the plugin config, or use the plugin config if its already there.
Merge pull request #10 from adhearsion/feature/freeswitch_support

Feature/freeswitch support