Label syncing should be case-sensitive

[blipinsk]

It would be nice if the script was syncing labels also if they only differ in case.

For example in one of my projects I had label bug and in the second one (which I was using as a syncing source) - Bug. First project's label text did not get changed.

[mnapoli]

Hi, indeed right now labels are considered having differences if the color is different but why not add support for case-sensitive comparison