Removes browser decoding optimization for JPEG CMYK
Refactoring download button logic
Rejects incorrect url in download manager
Merge pull request #3467 from yurydelendik/download-refactor

Refactor download logic
Restoring PR 3455 functionality
Merge pull request #3468 from yurydelendik/download-refactor

Restoring PR 3455 functionality
Enable range requests in master mode.
Merge pull request #3469 from brendandahl/enable-rr-in-master

Enable range requests in master mode.
Merge pull request #3436 from yurydelendik/jpeg-cmyk

Removes browser decoding optimization for JPEG CMYK
Secondary toolbar implementation (13-7-2013)