Update to Scala 2.10. Remove lift-json and
twitter-json to pure jackson (scala module).
Ignore .DS_Store
Remove warnings for double literals.
Remove uses of postfix syntax. Enable implicit
and higherKinds language features.
Set -classpath directly in launcher, rather than
going through java.class.path.
Ignore worksheet directory.
Merge branch 'master' of github.com:kbarros/kb_physics