Fix mtime parameter value for files uploads
Update podspec dependencies versions
Improve API responses XML deserialization
Update pod dependency version
Update fetch objects method to shunt operation when requesting empty array
Update SZNItem to provide md5 in completion blocks for file uploads
Fix file upload request URL (URL encode file names)

Update demo project pods
Handle invalid responses for files uploads
Validate items type and valid field responses format
Fix upload file completion handler when file already exists on server
Better error messages for files upload
Fix compiler warning
Handle invalid XML responses
Fix crash with XML parsing for invalid objects
Update copyright notice for 2014
Bump to version 0.2
Merge pull request #3 from shazino/development

SZNZotero 0.2