Merge pull request #70 from jeffvalk/master

Move Java info support from ASM to source parsing.
Merge pull request #72 from jeffvalk/master

Modify source tree filter for JDK8 compatibility.
Move inspect code to the util namespace
Add public version data

It will be used to determine compatibility between cider & cider-nrepl.
Correct the name of toggle trace op
Add a whitelist for info keys on var metadata

When generating a map for info on a var, whitelist the keys that may appear.

Address cider #588
Merge pull request #74 from hugoduncan/feature/whitelist-var-meta-keys

Add a whitelist for info keys on var metadata
Give credit where credit is due

Credit @gtrak, @jeffvalk and @hugoduncan for their work on the project.
Minor change
Ensure map keys are bencoded as strings.

Add `:deprecated` to var metadata whitelist.