Use fontello custom icons build instead of packaged ST Icons. Add icon for columns
Make SASS partial prefixed with _
Fontello icons for code formatter
Resolve conflicts with Bootstrap CSS
Fix block controls styling
Use fontello API to manage icons font
Improve columns handling: add column presets, remove unneeded logical entities.
Fix columns element saving/loading + tweak stying
Fix reordering DnD listener to be compatible with other DnD functionality. Move generated icons css to separate file.
Merge pull request #1 from ansata-biz/narrow-design

Narrow design, fontello icons