Fix broken slim tenplates.
Merge pull request #1435 from namusyaka/fix-slim

Fix broken slim templates.
support rails-style attribute hash of select options
support disabled_options key for select_tag
fix ruby 1.8.7
Merge pull request #1436 from padrino/rails-style-select

Rails-style options for select, closes #872
Correct fix for Slim #1431, #1434, #1435
fix #1438
Remove color monkeypatching from strings, tuck that away in separate class (RE #1438)
Merge pull request #1437 from minad/correct-slim-fix

Correct fix for Slim #1431, #1434, #1435