era7-sbt-release v0.2.0 release

- [x] rename to `nice-sbt-settings`
- [x] add default project metainformation (homepages, license)

two types of projects:
- [x] `scalaProject`
- [x] `javaProject`

scala related:
- [x] strict conflict manager
- [x] optional sbt-assembly far jar

java related:
- [x] `crossPaths := false` to omit `_2.10` suffixes
- [x] `autoScala... := false` to omit scala dependency

from [here](https://github.com/bio4j/bio4j-scala/pull/1#issuecomment-27865958)

- [x] `target:jvm-1.7`