upped dependencies and increased version

midje -> 1.5.0
lein-midje -> 3.0.0
clojure -> 1.5.0
tools.logging -> 0.2.6
clojure-commons -> 1.4.1-SNAPSHOT
cheshire -> 5.0.2
clj-http -> 0.6.5
clj-time -> 0.4.5
slingshot -> 0.10.3
url -> 0.0.7