bumped version to 1.0.0-beta.15
bumped version to 1.0.0-beta.15

highflying/heroku-oauthd,saltt/oauthd,saltt/oauthd,front/oauthd,dreadjr/oauthd,pmstss/heroku-oauthd,schaitanya/oauthd,oauth-io/oauthd,timic/oauthd,highflying/heroku-oauthd,pmstss/heroku-oauthd,dreadjr/oauthd,saltt/oauthd,front/oauthd,timic/oauthd,highflying/heroku-oauthd,pmstss/heroku-oauthd,schaitanya/oauthd,schaitanya/oauthd,front/oauthd,timic/oauthd,dreadjr/oauthd,oauth-io/oauthd,oauth-io/oauthd