Build status image to README.md
Require >= Leiningen 2.0.0
Use Maven-like dir structure for sources and tests

Sources in src/main/clojure, tests in src/test/clojure.
Force Leiningen >= 2.0.0
Test with jdk's 6 - 8
Depend on prismatic/schema 0.3.5
Use "standard" clojure project layout after all
Define target-path
Use speclj 3.1.0 for tests
Run speclj tests on travis build