README: extended.
Project.clj: updated all dependencies and plugins.
For some reason we need :exclusions for garden and lein-garden.

(error message without :exclusions was

lein garden auto
Compiling Garden...
(WARNING!!! version ranges found for:)
([garden "1.1.5"] -> [com.keminglabs/cljx "0.3.1"] -> [org.clojars.trptcolin/sjacket "0.1.0.3"] -> [org.clojure/clojure "[1.3.0,)"]
Consider using [garden "1.1.5" :exclusions [org.clojure/clojure]].)
([garden "1.1.5"] -> [com.keminglabs/cljx "0.3.1"] -> [org.clojars.trptcolin/sjacket "0.1.0.3"] -> [net.cgrand/regex "1.1.0"] -> [org.clojure/clojure "[1.2.0,)"]
Consider using [garden "1.1.5" :exclusions [org.clojure/clojure]].)
([garden "1.1.5"] -> [com.keminglabs/cljx "0.3.1"] -> [org.clojars.trptcolin/sjacket "0.1.0.3"] -> [net.cgrand/parsley "0.9.1"] -> [org.clojure/clojure "[1.2.0,)"]
Consider using [garden "1.1.5" :exclusions [org.clojure/clojure]].)
([garden "1.1.5"] -> [com.keminglabs/cljx "0.3.1"] -> [org.clojars.trptcolin/sjacket "0.1.0.3"] -> [net.cgrand/parsley "0.9.1"] -> [net.cgrand/regex "1.1.0"] -> [org.clojure/clojure "[1.2.0,)"]
Consider using [garden "1.1.5" :exclusions [org.clojure/clojure]].)
nil
)