Highlight multiple attrs and ruby code after attr

![](http://img.sorah.jp/Terminal_%E2%80%94_tmux-20140309-053259.png)

![](http://img.sorah.jp/Terminal_%E2%80%94_tmux-20140309-053322.png)
Close slimWrappedAttrValue by end of line
Fix line continuation
Merge pull request #45 from sorah/highlight_multiple_attrs_and_ruby_code_after_attr

Highlight multiple attrs and ruby code after attr