Fixup the PrepareResources task to properly augment the classpath in
the exclusives regime.

Undo pingpong example workaround.

Perform minor cleanups on exclusives related code read to grok this
fix.
Remove a superfluous encode() call.

dist.get_metadata() returns a string (NOT a unicode). It is not
logically sound to call encode('utf-8') on a string, only on a
unicode. In fact, string probably shouldn't have an encode() method
at all.
Merge pull request #174 from foursquare/master

Remove a superfluous encode() call.
Merge pull request #171 from jsirois/jsirois/pants/issue_160

Fixup the PrepareResources task to properly augment the classpath in the exclusives regime.
Revert "Keep the && chain alive in the travis build, a failed pants build should fail fast."

Eric knew what he was doing here of course :/

This reverts commit cf28c12cf8c9f63174ee07d56ed76873baf57d9a.