Version 1.4.0

New functionality and features

• Add Conditional Transformations

Other changes

• Add Condition builder for faces
• Modify explicit test - don't use twitter
• Modify categorization test result value
• Cleanup Whitespace
• Use variables for public_id's in rename tests
• Fix uploadLarge to use X-Unique-Upload-Id instead of updating params. Solves #18
• Fix support for non-ascii chars in upload URL