update copyright year to range
Add license field

Fixes https://github.com/futuresimple/dropbox-api/issues/39
Added ability to set custom options to the Dropbox::API::Client#delta method.
Merge pull request #50 from petems/patch-1

Add license field
Merge pull request #45 from gdi2290/patch-1

update copyright year to range
Explain what the oauth_verifier is
Updated the README file to reflect the changes to Dropbox::API::Client#delta
Merge branch 'master' of github.com:marvinscharle/dropbox-api into marvinscharle-master
Add a spec which verifies params are passed to delta
0.4.3 - allow params for delta
Fix specs for Dropbox::API::File
Add Changelog
Add Dropbox::API::Dir#hash which returns the dropbox hash
0.4.4 -  Add Dropbox::API::Dir#hash which returns the dropbox hash
Do not fetch contents in Dropbox::API::Client#find

See https://github.com/futuresimple/dropbox-api/issues/20
Add VCR and web mock to Gemspec
Wrong description fixed for 429 error
All specs changed to use VCR
I created a dummy user that I can delete afterwards just in case I leak any data, but I've added the authorisation to the filtered config so if they're re-recorded in the future they'll be no issues
Now all the tests are idempotent, enable Travis!