Cleanup loose ends.
Improves how background operations are handled.

All background operations are now queued to a single NSOperationQueue.
Previously the code was constructing separate NSOperationQueue instances
for each traversal. This made it difficult to debug background tasks
because there was an explosion of threads.

Switched the default handling of embedded resources on by default. In
earlier versions the default was to ignore embedded resources unless
the caller explicitly turned them on.  This seemed backwards.
Merge branch 'feature/fix-order-of-operations' into develop
Fixes path to lighttpd.
Fixes path to lighttpd again.
Added debugging to travis script.
More troubleshooting of Travis.
Adjusted paths in before script.
Merge pull request #15 from ObjectiveHAL/develop

Feature/fix order of operations
Fixes url encoding issue for link relations.

The rel urls for some link relations were not being expanded properly.
The CSURITemplate was replacing a '/' with %2F in the result after doing
the template expansion.  This fix decodes the results of CSURITemplate
once the expansion has been done.
Using FSClassExtensions pod for async test support.
Corrects issue with podspec.
Fixes reference to FSClassExtensions.
Turns off travis build until the support Xcode 5.