add a CI script so we can build raca on buildbox
keep this directory around so gems aren't re-installed every build
ignore vendor/bundle so gems on the build server stay around
add a Container#temp_upload_url method

* returns a URL that anyone can PUT to, creating a file in cloud files.
  Useful for performing direct uploads from the browser.
deprecate Raca::Container#expiring_url in favour of Raca::Container#temp_url

* TempURL is what the technique is called in the rackspace docs, and it
  aligns better with the method for generating tempory upload URLs -
  temp_upload_url()
Merge pull request #2 from conversation/public-upload-support

add a Container#expiring_upload_url method
Fixed OpenSSL deprecation warning
Merge pull request #4 from conversation/silence-deprecation

Fixed OpenSSL deprecation warning
Add methods for setting and getting container headers
spec Raca::Container#set_metadata