travis: allow failures for jruby 1.7.23
travis: allow failures for jruby 1.7.23

Because I can't figure out why npm and node aren't working just for this
ruby. I feel like I'm taking crazy pills.

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