Submodule updates: CSS, Haml, Ruby

CSS.tmbundle: f630790..3e9359c

  * 3f9903f Changes due to the way 2.0 returns word input (Michael Sheets)

    2.0 can return surrounding punctation as the word input when there is no
    preexisting color, workaround this by replacing the input only if it is
    a valid color.

Haml.tmbundle: d79928a..47cd9ba

  * 47cd9ba Use `html2haml` for converting HTML to Haml. (Stefan Daschek)

    Haml::HTML does exist in Haml 4 anymore.

Ruby.tmbundle: 85f831d..85f15be

  * 50782f8 Allow for method names that end in = (Michael Sheets)

    Further fixes #59.