Sort string with special characters

[floriannicolas]

Hi !
Great job for DataCollection.js, I use it since yesterday and it is really usefull!

It's not really a bug, just a weird (but understanding) feature. When I sorted my collection by a string property, I noted a weird order. Lowercase strings or strings who contain special characters are at the end of list.

Example for this unordered list :

• Oberyn Martell
• osha
• Stannis Baratheon
• Ëlia Marthell

If I sort this list by ASC :

• Oberyn Martell
• Stannis Baratheon
• osha
• Ëlia Marthell

If I sort this list by DESC :

• Ëlia Marthell
• osha
• Stannis Baratheon
• Oberyn Martell

I found a solution: duplicate my string property with a proper_property (all in lower case, without special character) but if DataCollection.js could provide it own solution, it would be great!