Allow setting the overlay opacity through CSS, rather than having to use Colorbox's opacity property.  Fixes #580
Language translation for Myanmar.
Merge pull request #582 from Mr-Zer0/master

Language translation for Myanmar.
Lithunian translation
Merge pull request #585 from norkunas/master

Lithunian translation
Applied maxWidth and maxHeight to the initialWidth and initialHeight.  Fixes #391
Fix potential error when calling Colorbox directly. References #591
Potentially worked around browser limitation of reporting that an image height and width is 0 immediately after onload.  Fixes #535
Fixed accidental leak of global variable.  References #591
Enabled strict mode. Fixes #597
Add support for a per-image copyright notice, stored within a .copyright element within the linked element.