Add rake task to run only cocoapods specs
Add rake task to run only cocoapods specs

Signed-off-by: Alpha Chen <7364008dc3be68102ea8f9d7e1fdcc07eb756637@pivotal.io>

pivotal/LicenseFinder,bdshroyer/LicenseFinder,pivotal/LicenseFinder,tinfoil/LicenseFinder,bdshroyer/LicenseFinder,pivotal/LicenseFinder,tinfoil/LicenseFinder,bspeck/LicenseFinder,bspeck/LicenseFinder,tinfoil/LicenseFinder,bdshroyer/LicenseFinder,bspeck/LicenseFinder,sschuberth/LicenseFinder,sschuberth/LicenseFinder,bspeck/LicenseFinder,pivotal/LicenseFinder,bdshroyer/LicenseFinder,sschuberth/LicenseFinder,tinfoil/LicenseFinder,bspeck/LicenseFinder,bdshroyer/LicenseFinder,tinfoil/LicenseFinder,pivotal/LicenseFinder,pivotal/LicenseFinder,pivotal/LicenseFinder,sschuberth/LicenseFinder,sschuberth/LicenseFinder