renamed frontend/default/default -> frontend/base/default

so extension will work with custom themes
upgraded to yuicompressor 2.4.7
use generic yuicompressor.jar instead of hardcoding it to a specific version no.
updated modman config
Merge pull request #2 from mystix/master

renamed frontend/default/default -> frontend/base/default, remove hardcoded yuicompressor version, remove src code of yuicompressor, update it to 2.4.7, update modman file