remove git ignore's files and add .gitignore
update lein-droid "0.3.0-beta4" and  clojure-android "1.7.0-alpha3", neko "3.1.0-preview2", tools.nrepl "0.2.6", compliment "0.2.0" to support ART Runtime
templatize AndroidManifest.xml
templatize AndroidManifest.xml (version-code and version-name)