use org.scala-refactoring snapshots for 2.10 branch and upgrade a
variety of middleware components
Index source jars
Return archive paths in Swank responses ; refactor imports
Visit files inside source jars
Merge pull request #18 from edani/browse-jar

M-. can visit source jars
unmanaged jars no longer needed for 2.9 build
Merge pull request #17 from fommil/master

use org.scala-refactoring snapshots for 2.10 branch and upgrade a