update libraries version
replace lift-json with json4s
add scala 2.10.4 to crossScalaVersions
add scala 2.11.0 to crossScalaVersions
remove 2.10.0, 2.10.3 from crossScalaVersions
Merge pull request #11 from zaneli/scala_2_11_0

update libraries version and add scala 2.10.4, 2.11.0