fusion 6.x-1.0-rc1

IMPORTANT NOTE: This release requires that you also upgrade Skinr to version 6.x-1.4

#606462 by sociotech, fixed floating of blocks within Quicktabs block
#681652 by sociotech, removed reference to head.php from maintenance-page.tpl.php
#670334 by sociotech, added RTL styling for content tabs in Fusion Starter
by sociotech, removed design pack and put color styles back into fusion-starter-style.css -- this was not intended to be committed to Fusion itself and is better served by Skinr and/or future sub-subtheming
by eternalistic, changed the targeting for form-submit so styling for buttons targets the button on search pages as well
by eternalistic, fixed duplicate search form ids
by sociotech, added new style preview code that accommodates varying screenshot dimensions
by stephthegeek, reworked multicolumn menu style to not have fixed widths, but use a 50px margin between columns instead
by stephthegeek, changed reduced line height on small form item description text
by sociotech, updated Skinr styles to conditionally load JS/CSS files where possible now that Skinr v1.4 is released (including separating the Equal Heights style to its own section)
by sociotech, added font-family declarations for form-text in typopgraphy.css to ensure correct field widths (e.g., password) in ie6, ie7, & ie8
by sociotech, changed set only Ubercart quantity field in catalog grid to 25px width (instead of all text fields)
by sociotech, fixed gutter removal for content region blocks