Update extension for Symphony 2.4, ensure consistent formatting

Fixes #11, closes #41
Add delegate calls

Closes #33
Add Russian translation, thanks @andrrr

Closes #34
Fix script URL
Adjust data attribute to force sorting
Update sort order field class
Rewrite JavaScript for Symphony 2.4
Remove console.log
Adjust field settings layout
Automatically store new sorting field, if manual sorting is forced
Make use of JSONPage
Allow ascending and descending sorting
Decouple settings from markup
Version 2.0
Check if sorting field exists
Custom delegates pre and post ordering

Closes #33, closes #34
Version 2.0.1
Fix table selection
Correctly select table
Merge pull request #44 from symphonists/integration

Symphony 2.4 Compatibility